Question

(n+7)²=n²+49 find error and correct
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Answer 1

Answer:

(n+7)²=n²+49+98n

By using (a+b)²=a²+b²+2ab

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Answer 2

Answer:

(a+b)^2 = (a+b)(a-b)

Step-by-step explanation:

(n+7)^2= (n+7)(n-7)