5x2 + 20x = 5x (x + 4)
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
5x2 + 20 = 5*(x2 + 4) which cannot be factorised further.
(5x - 4)(x - 5)
5(x + 4)(x - 2)
5x2 + 20x = 5x (x + 4)
3x3+12x = 3x(x2+4)
x(5x - 4)
-5x2+9x-4 -5x2+9x+-4 Factors of -20 that add to equal 9 are -5 and-4 -5x2+5x+4x+-4 -5x(1x+1) + 4x(1+-1x)
5x2 + 20 = 5*(x2 + 4) which cannot be factorised further.
x = 2 or x = 2/5
(5x - 4)(x - 5)
5(x + 4)(x - 2)
x2 + 12x + 32 = (x + 8)(x + 4)
16X + 12X all I can see here is factoring out a 4X factor 4X(4 + 3) ---------------
(x - 2)(x - 2)(x - 1)
(1, 12x), (2, 6x), (3, 4x), (4, 3x), (6, 2x) and (12, x).