Factorise:
(i) x(x + 3) + 5(x + 3)
(ii) 5x(x − 4) − 7(x − 4)
(iii) 2m(1 − n) + 3(1 − n)
(i) $x(x+3)+5(x+3)=(x+3)(x+5)$
(ii) $5 x(x-4)-7(x-4)=(x-4)(5 x-7)$
(iii) $2 m(1-n)+3(1-n)=(1-n)(2 m+3)$
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