find the product using the identity (a+b) 2=a2+2ab+b2
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Answer:
x²+14x+49
Step-by-step explanation:
(x+7)²
Using Identity,
(a+b)² = a²+2ab+b²
a = x
b = 7
(x+7)² = (x)²+2× x × 7 + (7)²
= x²+14x+49
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