Factoriser
1) (2+3x)[ 3-(5+2x)]
(2+3x)(3-5-2x)
(2+3x)(-2-2x)
2) (2-5x)[ (2-5x)-(1+x)]
(2-5x)(2-5x-1-x)
(-5x+2)(-6x +1)
3) 5(-2x+1)-(4+3x)(2x-1)
(-2x+1)[ 5+(4+3x)]
(-2x+1)(3x+9)
4) x(3x-1)
5) (7x-4)(7x+4)
6) [5-(x+2)][5+(x+2)]
(5-x-2)(5+x+2)
(-x+3)(x+7)
7) (2x-4)²=(2x-4)(2x-4)
8) (8x-1)²=(8x-1)(8x-1)