7x^2+9x+2=0

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1 Answer

7x2+9x+2=0,

7x2+7x + 2x+2=0,

7x(x+1) + 2(x+1)=0,

(7x+2)(x+1)=0, so x+1=0, making x=-1; or 7x+2=0, 7x=-2, making x=-2/7.

by Top Rated User (1.1m points)

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