3x - 7 = 5x + 13-2x = 20x = -10
3x - 7 = 5x + 133x - 5x = 13 + 7-2x = 20x = -10x=-3
5x-8 = x+125x-x = 8+124x = 20x=5
Factorises as (5x-2)(5x-2) so x = 0.4 25x2= 4, -20x = -8 4 - 8 + 4 = 0
5x2 + 20x = 5x (x + 4)
3x - 7 = 5x + 13-2x = 20x = -10
3x - 7 = 5x + 133x - 5x = 13 + 7-2x = 20x = -10x=-3
5x-8 = x+125x-x = 8+124x = 20x=5
Factorises as (5x-2)(5x-2) so x = 0.4 25x2= 4, -20x = -8 4 - 8 + 4 = 0
5x2 + 20x = 5x (x + 4)
5x^2 + 20x
5x2 + 20x = 0 5x(x + 4) = 0 x = 0 and -4
25x2 + 40x + 16 = 25x2 + 20x + 20x + 16 = 5x(5x + 4) + 4(5x + 4) = (5x + 4)(5x + 4) or (5x + 4)2
4(5x + 3) - 9 = 20x + 3
5x+2=x+10 5x-x=10-2 4x=8 x=2
5x+10=40 5x+10-10=40-10 5x=30 5x/5=30/5 x=6
5x(x^4+7x+4)