x²+2x-15=0 x1=-2/2 - Square root of ((2/2)²+15) x1=-1-4 x1=-5 x2=-2/2 + Square root of ((2/2)²+15) x2=-1+4 x2=3
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x2-2x-15 = (x+3)(x-5) when factored
x2+2x-15 = (x+5)(x-3) when factored
4X + 2x = 1. Where x = 0.166666666666666666666666666666666666666 recurring.
X2 + 2X - 14 = 6X2 + 2X - 8 = 0what two products of - 8 = 2 ?(X +4)(X - 2)=========X = - 4X = 2
It is a quadratic expression and is (x-3)(x+5) when factored