x(x + 2)
(x - 6) (x + 4) = x2 - 2x - 24
Write it as x2 - 2x - 4 = 0, and solve with the quadratic formula (a = 1, b = -2, c = -4).
x2-2x-24 when factorised = (x+4)(x-6)
x2 - 2x - 24 = (x - 6)(x + 4)
Factor it out: (x+2) squared
x(x + 2)
(x - 6) (x + 4) = x2 - 2x - 24
(x2+3x-4) (x-4)
2(x + 2)(x - 2)(x2 + 2x + 4)(x2 - 2x + 4)
2X divided by 4= 2X
Write it as x2 - 2x - 4 = 0, and solve with the quadratic formula (a = 1, b = -2, c = -4).
x2-2x-24 when factorised = (x+4)(x-6)
x2 - 2x - 24 = (x - 6)(x + 4)
If that's + 8x, the answer is 4(x2 + 2x - 6) If that's - 8x, the answer is 4(x2 - 2x - 6)
negative four: x2 - 2x + 5 = x2 - 2x + 5 - 4 = x2 - 2x + 1 = (x - 1)2
(x - 2)(x + 2)(x2 - 2x + 4)(x2 + 2x + 4)