+0  
 
+1
160
6
avatar+381 

REally need help asap.

 

1.

Graph the functions on the same coordinate plane.

f(x)=x2+6x+8

g(x)=−x2+4


What are the solutions to the equation f(x)=g(x)f(x)=g(x)?

Select each correct answer.

 

−2

−1

0

2

3

 

2.

What is the expression in radical form?

(8)5/2   Must be simplest form

 

3.

 

Thanks so much!!!! 

 May 27, 2019
 #1
avatar+106536 
+1

Here's the first one, PF :  https://www.desmos.com/calculator/ysfv3ogzwy

 

The x values are - 2  and -1

 

 

cool cool cool

 May 27, 2019
 #2
avatar+106536 
+1

Don't understand the second one

 

Last one

 

(8x^7y^4)^(2/3)  =

 

8^(2/3) *(x^7)^(2/3) * (y^4)^(2/3) 

 

[8^(1/3)[^2  * [x^14/3]  * [y^8/3]  

 

2^2  *  x^4 * x^(2/3)  *  y^2 * y^(2/3)

 

4x^4y^2 ∛ [ x^2 y^2 ] 

 

 

cool cool cool

 May 27, 2019
 #5
avatar+381 
0

Thank you so much! The explanations refreshed my memory for the other ones as well!!

PhoenixForever  May 27, 2019
 #3
avatar+19931 
0

(8)5/2=   ( 2*2*2)^5/2 =   (4*2)^5/2 =   2^5  * 2^5/2 = 32 (2*2*2*2*2)^1/2 = 32 * 4 sqrt2 = 128 sqrt 2

 May 27, 2019
 #4
avatar+106536 
0

THX, EP  !!!!!

 

 

cool cool cool

CPhill  May 27, 2019
 #6
avatar+381 
+1

Awesome, thank you for helping!!!!!

PhoenixForever  May 27, 2019

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