Solve for x: x2 + 3x – 10 = 0
x^2 + 3x – 10 = 0; (x + 5)(x - 2) = 0; x + 5 = 0; x = -5; x - 2 = 0; x = 2; x = 2 or -5
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Updated 8/18/2014 4:20:10 PM
Edited by andrewpallarca [8/18/2014 4:20:06 PM], Confirmed by andrewpallarca [8/18/2014 4:20:10 PM]
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A system which has no solution and whose graph consists of parallel lines is called:
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Updated 8/18/2014 4:22:19 PM
3x^2 – 27 = 0 solve for x
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Updated 8/2/2014 6:17:17 PM
3x^2 – 27 = 0

3(x - 3) (x + 3) = 0;

3(x - 3) = 0;
3x - 9 = 0;
3x = 9;
x = 9/3;
x = 3

x + 3 = 0;
x = -3

x = {-3, 3}
Confirmed by yumdrea [8/2/2014 6:29:40 PM]
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