Question

Accepted Answer

(a) $3ab(2a-3b+1)$; (b) $-4(2x+3y)(x-y)$; (c) $4b(a+4b)(a-b)$; (d) $y(x-y)(x-4y)$; (e) $3(x+5y)(x-y)$; (f) $-5x(2a-x)(a-x)$.

Common factor followed by quadratic factorisation