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3 years ago

12

Find the values of a and b such that x² + 2x - 7 = ( x + a )² + b

2 answers:

gizmo_the_mogwai [7]3 years ago

8 0

Answer:

<em>a = 1 ; b = - 8 </em>

Step-by-step explanation:

x² + 2x - 7 = (x² + 2x + 1) - 1 - 7 =<u><em> (x + 1)² - 8 </em></u>

<em>a = 1 </em>

<em>b = - 8</em>

Sergio [31]3 years ago

8 0

Answer:

a = 1 , b = -8

Step-by-step explanation:

(x+1)^2 = x^2+2x+1

x^2+2x+1-8 = x^2+2x-7

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