Express (x+7)^2(x+7)^2 as a trinomial in standard form.

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asked Aug 18, 2021 190k views

4 votes

Express (x+7)^2(x+7)^2 as a trinomial in standard form.

Mathematics
high-school

Bernardn asked

by Bernardn

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1 Answer

6 votes

Answer:

x^(4)+28x^3+294x^2+1372x+2401

Explanation:

$(x+7)^(2) (x+7)^2 = (x+ 7)(x+7)(x+7)(x+7)\\(x^2+7x+7x+49)(x^2+7x+7x+49)=(x^2+14x+49)(x^2+14x+49)\\x^4+14x^3+49x^2+14x^3+196x^2+686x+49x^2+686x+2401\\x^4+28x^3+294x^2+1372x+2401$

RobertKenny answered Aug 25, 2021

by RobertKenny

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