4 years ago

Fill in the blanks. (x+_)^2=x^2+14x+_

1 answer:

Serga [27]4 years ago

7 0

Step-by-step explanation:

(ax + b)² = a²x² + 2abx + b²

In this case, a = 1, so:

14 = 2b

b = 7

(x + 7)² = x² + 14x + 49

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