Question

solve (x+7)² using identity (step to step please )​

Answer 1

Answer:

using the identity :- ( a + b)² = a² + 2ab + b²

Step-by-step explanation:

As given ,

x = a

7 = b

(x + 7)² = x² + 2(7x) + 7²

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Answer 2

$\small\fbox\colorbox{pink}{ANSWER}$

$\huge\pink{\fbox{\tt{a² + 2ab + b²}}}$

$\pink\longrightarrow$ ( x+7 )²

$\pink\longrightarrow$ (x)² + 2(x)(7) + (7)²

$\pink\longrightarrow$ x² + 14x + 49