SOLUTION: I don't understand why 2x^2=15-7x has the answer x=-5, 1.5

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Question 603440: I don't understand why 2x^2=15-7x has the answer x=-5, 1.5
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

I don't understand why 2x^2=15-7x has the answer x=-5, 1.5

generally a quadratic EQ will have two roots

2x^2=15-7x 

2x^2 +7x - 15=0

factoring

(2x -3)(x + 5) = 0

(2x -3) = 0   x = 3/2 0r 1.5

(x + 5) = 0   x = -5