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Which equation is equivalent to the given equation?

 

x^2+16x=22

 

a. (x+8)^2=86
b. (x+8)^2=38
c. (x+16)^2= 278
d. (x+4)^2= 22

 Aug 14, 2020
 #1
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Expand (x+8)2 in answer A. and obtain x2 + 16x + 64 = 86 

 

When you subtract 64 from both sides, it is x2 + 16x = 22 

 

So the correct answer is selection a. as in applesauce. 

.

 Aug 14, 2020

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