+0  
 
0
81
5
avatar+312 

Post a question that is algebra II level, I need a question to work on

by the way, how do you enter an uppercase sigma on the calculator to calculate sums?

ZZZZZZ  Jun 2, 2017
Sort: 

5+0 Answers

 #1
avatar+4155 
0

Hmmm...how about...

 

 

Solve for x.

 

ax2 + bx + c = 0

 

 

 

You will need to "complete the square" to get the answer.

I think this is probably algebra II level, but I'm not sure.

Or maybe you've done this already...

hectictar  Jun 2, 2017
 #2
avatar+815 
+1

I was going to ask the exact same question! I almost typed it out and realized that someone beat me to it. :(

TheXSquaredFactor  Jun 2, 2017
edited by Guest  Jun 2, 2017
 #3
avatar+4155 
0

Wow really! Hey it's a good thing to know how to do! laugh

hectictar  Jun 2, 2017
 #4
avatar+312 
0

It's a basic quadratic function.

 

step1:  ax2+bx+c = 0

It takes a while, but you eventually get to the quadratic formula, x=(-b ± sqrt(b2-4ac)/2a

 

Also, is there a plus/minus button? I just copied the symbol I used off Google.

ZZZZZZ  Jun 2, 2017
 #5
avatar+815 
0

Here's a system for you:

 

\(-4x+y-2z=-14\)

\(8x-2y+4z=7\)\(2x-4y+z=3\)

TheXSquaredFactor  Jun 2, 2017

9 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details