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MathNoobFIN:
Hey , how can I type x^2-16/4x-16 in to the calculator so the 4x-16 will be under the x^2-16? The calculator only puts only 4 under the 16.

That is what brackets are for, both in writing here and on a calculator!

( x^2-16) / (4x-16)

You have to factorise the top and the bottom seperately first.

The top is a difference of 2 squares .
Hint: a ²- b ² = (a+b) (a - b)

The bottom you just factorise normally

Then you cancel common factors.
I hope that is enough help, but if it is not ask again.

MelodyDec 10, 2013

GuestDec 10, 2013

No that doesn't change automatically because the x did. Here's an example..
X=2
Y=4

X can change to this X=4 but Y=4 stays the same unless they tell you they changed it. So therefore if X=Y then Y=Whatever number there is unless it states that
x=y & y=x

GuestDec 10, 2013

Whatever dude. Trynna put me on blast and s**t? F**k you stupid a*s people rt. I'm just not going to bother coming onto this website anymore. I have a right lady to boss whoever i want around so shut up, but whatever I'm never coming back on here Bye for good

GuestDec 10, 2013

[k=(k-4)/2-2] = -8
You're welcome

GuestDec 10, 2013

What??

GuestDec 10, 2013

I'm sorry I don't quite understand?

GuestDec 10, 2013

This makes about as a lot sense as gently.

GuestDec 10, 2013

Bullying is like because that is different and also did this when changed.

GuestDec 10, 2013

Harsh much..?

GuestDec 10, 2013

This is a math website. I assure you to quit using this for your regrets. If you need to vent go to church and speak to a priest and or a therapist. Nobody has time for your life and I assume no one cares either and If possibly I'm the only one then Idgaf Get off of this website with your sick dying a*s and get a life, oh wait....your life will be over soon ;o ouch sorry. Bye now.

GuestDec 10, 2013

Because im always busy with school and ish. Why don't you message me babygirl !? Comunicación recíproca que sabes? Post más foros así que podemos hablar, estoy en la escuela universitaria de 24/7 no es fácil jaja pero ey voy a tratar de venir este fin de semana

GuestDec 10, 2013

Bonjour ! Vous n'avez pas besoin de s'inquiéter pas parler anglais correctement. Ma langue maternelle est l'espagnol et mon anglais n'est pas très bon du tout, mais bien sûr je peux vous aider avec les questions. J'ai pris chinois, italien, français et russe de classes donc si vous avez besoin de moi je suis ici pour vous annabelle !

1. Quelle place dans le monde peut avoir les températures en degrés Fahrenheit et Celsius égale ?
F = 1,8 C + 32
x = 1,8 x + 32
x - x 1,8 = 1,8 x + x 32-1. 8
-0,8 x = 32
-x 8 = 320
-x = 40
x = -40
Le seul endroit qui pourrait être de-40 degrés de froids doit être Anartica.

2. If x*x + 2x - 35 = 0,
then x = ?
(1)x*x + (2)x + (-35) = 0
a = 1
b = 2
c = -35

(-b +/- d)/2a
d*d = b*b - 4ac
x = -5, 7

3.If ax*x + bx +c = 0,
then what is x?
(a)x*x + (b)x + (c) = 0

d*d = b*b - 4ac
(-b +/- d)/2a=x

4. Quelle est la surface d'un hexagone régulier avec côtés 1 po de long ?
1.5a
a*a=3

5. Vous avez deux bloc d'argile en forme de cube et les bords sont de 10 cm. Combien de sphères avec un rayon de 5 cm pouvez-vous faire avec cette somme d'argile ?
3 sphères

GuestDec 10, 2013

Hi nice to meet you. I'm professor veronica, anyways the first question you asked me is correct because I scattered it upon a graph and the units are placed right on point. Well here are the answers to rest...

2. y = log x
10 = log x
10 = 10^x
x = 1

3. Let's assume that HM = Human and
HR = Horse

HM + HR = 74
2HM + 4HR = 196
(2HM + 4HR) - (2 HM + 2HR) = 196 - 148
2HR = 48
HR = 24
HM + (24) = 74
HM = 74 - 24
HM = 50

So, the solution is 24 horses and 50 humans.

4. Yes!!!
The expression "x!" means x(x-1)(x-2)(x-3)...1
So 10! means 10(10-1)(10-2)(10-3)(10-4)(10-5)(10-6)(10-7)(10-8)(10-9)=
10*9*8*7*6*5*4*3*2*1=10!,
which means it is correct.

GuestDec 10, 2013

Yes hello, my name is Lisa C**t last name pronounced as Klite like a kite and light :p And um my math question for you to help me is plot((3/x^2)-1, x=-360..360, -1.25..1.713) on a graph, well more likely did i get it right.? I'm not quite sure and i have more questions okay? Hmmm...okay well here okay.....

2. y = log x
If y = 10, then what is x?

3. One day, a person went to horse racing area, Instead of counting the number of human and horses, he instead counted 74 heads and 196 legs. Yet he knew the number of humans and horses there. How did he do it, and how many humans and horses are there?

4.10*9*8*7*6*5*4*3*2*1 = 10!
Can this be true?! Why or why not?

GuestDec 10, 2013

On a plot x= --360...360 okay? Or other than that it would be -1 by itself.

GuestDec 10, 2013

Hey melody ! San Takisojotando is speaking Russian !! :p She was asking for help on the math question because it's her first year of school and her brain isn't getting it, and her cousin explains the rest. And Lmao ,you're dumb hahah why don't you message me anymore

GuestDec 10, 2013

Văr, acest matematica nu este greu, dar foarte uşor. Ai nevoie să-i dea ceva timp pentru creier pentru a regla bine? Cand ajung la casa ta, azi te va ajuta! Şi ştiu că acesta este primul an, dar aveţi posibilitatea să vină părinţii tăi pentru păstrarea tine blocat departe de toţi aceşti ani! Slava ta afară din acel loc rău şi în cele din urmă cu bunica, ea va avea grija de tine acum că acei oameni rău sunt puse în închisoare. Acum, tot va fi este timp astfel încât să fie pacient şi cunoştinţe va veni încet la tine. Te iubesc fata

GuestDec 10, 2013

The number line is usually represented as being horizontal. Customarily, positive numbers lie on the right side of zero, and negative numbers lie on the left side of zero. An arrowhead on either end of the drawing is meant to suggest that the line continues indefinitely in the positive and negative real numbers, denoted by \mathbb{R}. The real numbers consist of irrational numbers and rational numbers, as well as the integers, whole numbers, and the natural numbers (the counting numbers).

A line drawn through the origin at right angles to the real number line can be used to represent the imaginary numbers. This line, called imaginary line, extends the number line to a complex number plane, with points representing complex numbers. Anything else you'd like to know Mr.Smart aleck?

GuestDec 10, 2013

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