SOLUTION: Please help me! I have to solve by factoring. 3 equations. 1. x^2 + x = 6
2. x^2 + 7x -18 = 0
3. 2x^2 -x-3=0
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-> SOLUTION: Please help me! I have to solve by factoring. 3 equations. 1. x^2 + x = 6
2. x^2 + 7x -18 = 0
3. 2x^2 -x-3=0
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Question 459751: Please help me! I have to solve by factoring. 3 equations. 1. x^2 + x = 6
2. x^2 + 7x -18 = 0
3. 2x^2 -x-3=0 Answer by amoresroy(361) (Show Source):
You can put this solution on YOUR website! 1. x^2 + x = 6
Rearrange to get
x^2 + x - 6 = 0
(x+3)(x-2) = 0
So, x = -3
x = 2
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2. x^2 + 7x -18 = 0
(x+9)(x-2) = 0
So, x = -9
x = 2
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3. 2x^2 -x-3=0
(2x-3)(x+1) = 0
When 2x-3 = 0
x = 1.5
When x+1 = 0
x = -1
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Regards
Roy
