SOLUTION: solve: 2x^2+x=3

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Question 411330: solve:
2x^2+x=3
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

solving***

2x^2+x = 3

2x^2 + x-3 = 0

factoring

(2x+3)(x-1)=0 |Note:SUM of the inner product(3x) and the outer product(-2x) =x

(2x+3)=0   x = -3/2

 (x-1)=0   x = 1



CHECKING our Answer(s)***

2*9/4 -3/2 = 18/4 - 6/4 = 12/4 = 0

  2 + 1 = 3