Question

simplify using the Identify (x+3) (x+7)​

Answer 1

Explanation:

first take out the like terms

2x(3+7)

2x=3+7=10

so 2x =10

therefore x=10 divided by 2

and the answer is 5/1

Answer 2

Answer:

$x^{2}$+10x+21

Explanation:

(x+3)(x+7)

= x(x+7)+3(x+7)

= $x^{2}$+7x+3x+21

= $x^{2}$+10x+21

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