-15x2+5x=-5x(3x-1)
(5x + 2)(x + 3)
5x(3x + 1)
3x2 + 15x + 6 = 3*(x2 + 5x + 2). There are no further rational factors.
15x
-15x2+5x=-5x(3x-1)
(5x + 2)(x + 3)
5x(3x + 1)
1
5x2 + 9x + 13 has no real factors.
3x2 + 15x + 6 = 3*(x2 + 5x + 2). There are no further rational factors.
5x-15x+10 = 10-10x when simplified Assuming a request to solve the equation: 5x -15x + 10 = 0 5x - 15x + 10 = 0 5x - 15x = -10 or (multiplying everything by -1 gives you -5x + 15x = 10) so 15x - 5x = 10 10x = 10 x =1
15x^2-12+8x = 0Rewrite that again into descending x-powers15x^2+8x-12 = 0We can factorise this to(3x-2)(5x+6) = 0So for the equation to equal zero, either the first bracket must be zero or the second.if 3x-2 = 0 if 5x+6 = 03x = 2 5x = -6x = 2/3 x=-6/5So x = 2/3, -6/5
25
Factorise: 5x2 + 2x - 192 = (x - 6)(5x + 32) = 0; whence, x = 6 or -6.4.
steps: 3(5x-7) =(3)(5x-7) =(3)(5x)+(3)(-7) answer: 15x-21
5x