factor the expression
3x+7x 2


Answer :

Answer:

100x^2

Step-by-step explanation:

(3x+7x)^2 I hope was the question...

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

=9x^2+21x^2+21x^2+49x^2

=100x^2

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