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WORTH 25 POINTS!!!!!! PLS PLS PLS PLS PLS PLS PLS HELP I DON'T GET IT!!! Write missing monomials to make an identity:

A) (.....+2a)^2=.....+12ab+4*....


B) (3x+.....)^2=....*x^2+.....+49y^2

User TobSta
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1 Answer

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Answer:

(3x + 7y)^2 = 9 x^2 + 42xy + 49y^2

Explanation:

User Talitha
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