Question

FIND THE PRODUCT
(x+7)²

Answer 1

•Hey Mate,

•Here is your answer :

•(x+7)^2

•=x^2+2(x)(7)+7^2

•=x^2+14x+49

•=x^2+7x+7x+49

•=x(x+7)+7(x+7)

•=(x+7)(x+7)

•x=-7,x=-7.

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Hope it helps u!!!
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Answer 2

Given:

(x+7)²

To find:

The value of (x+7)²

Solution:

The value of (x+7)² is x²+49+14x.

We can find the value by following the given process-

We know that (x+7)² will form a quadratic expression and it will have two roots that will satisfy it.

We can obtain an expression by solving (x+7)².

Using the property of algebraic expressions, we know that (a+b)²=a²+b²+2ab.

On solving the given expression, we get

(x+7)²=(x+7)(x+7)

=x²+7x+7x+7×7

=x²+7²+2×x×7

=x²+49+14x

The product obtained on multiplying (x+7)(x+7) is x²+49+14x.

Therefore, the value of (x+7)² is x²+49+14x.