SOLUTION: sove for x. 4x(x-1)-5x(x)=3

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Question 380679: sove for x.
4x(x-1)-5x(x)=3
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

solving for x

4x(x-1)-5x(x)=3

4x^2 - 4x -5x^2 = 3

 x^2 +4x + 3 = 0

 factoring

(x+3)(x+1) = 0 Note:SUM of the inner product(3x) and the outer product(1*x) =4x

(x+3)= 0

  x = -3

(x+1) = 0

  x = -1