X2 + 4x -9 = (x + a)? +b
Find the value of a and the value of b.
a =
b=
?
1 answer:
Step-by-step explanation:
x² + 4x - 9
= (x + 2)² - 13
a = 2, b = -13.
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Answer:
178
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Step-by-step explanation:
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