Question

1.a²-10a+24=...?
2.ײ-12×+20=...??

Answer 1

1. a²-10a+24 = a²+2a-12a+24
                   = a(a+2) - 12(a+2)
                   = (a-12)(a+2)

2. x²-12x+20 = x²-2x-10x+20
                   = x(x-2) - 10(x-2)
                   =(x-10)(x-2)