(3x - 5x) + (x2 - 6x2) = -2x -5x2 = -x(2 + 5x)
2x2 + (5x-4x)2 + (x-x)2 = 2x2 + x2 + 02 = 2x2 + x2 = 3x2
2x+5x-24 7x2-24
x2 + 5x - 120 can not be factored.
x2 + 5x + 6 = (x + 2)(x + 3)
2x + 5x = 7x
-x2+2x
(3x - 5x) + (x2 - 6x2) = -2x -5x2 = -x(2 + 5x)
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
2x2 + (5x-4x)2 + (x-x)2 = 2x2 + x2 + 02 = 2x2 + x2 = 3x2
(5x - 3)(x + 8)
2x+5x-24 7x2-24
x2 + 2x - 15 = 0(x + 5) (x - 3) = 0x = -5x = +3
x2 + 5x - 120 can not be factored.
((15xy2)/(x2+5x+6))/((5x2y)/(2x2+7x+3)) =(15xy2/5x2y)*(2x2+7x+3)/(x2+5x+6) =(3y/x)*(((2x+1)(x+3))/((x+2)(x+3) =(3y(2x+1))/(x(x+2)) =(6xy+3y)/(x2+2x)
x2 + 5x + 6 = (x + 2)(x + 3)
x2 + 2x - 15 = x2 - 3x + 5x - 15 = x(x - 3) + 5(x - 3) = (x + 5)(x - 3)