Ответ:
1) а) ах-аy+bx-by=a(x-y)+b(x-y)=(x-y)(a+b) б) 5a+5y+pa+py=5(a+y)+p(a+y)=(a+y)(5+p)
2) a) 2x+ac+cx+2a=2(x+a)+c(a+x)=(x+a)(2+c) б) 2x+7y+14+xy=x(2+y)+7(y+2)=(2+y)(x+7)
3) а) ab+ac-4b-4c=b(a-4)+c(a-4)=(a-4)(b+c) б) 3a-3m-ay+my=3(a-m)-y(a-m)=(a-m)(3-y)
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Ответ:
1) а) ах-аy+bx-by=a(x-y)+b(x-y)=(x-y)(a+b) б) 5a+5y+pa+py=5(a+y)+p(a+y)=(a+y)(5+p)
2) a) 2x+ac+cx+2a=2(x+a)+c(a+x)=(x+a)(2+c) б) 2x+7y+14+xy=x(2+y)+7(y+2)=(2+y)(x+7)
3) а) ab+ac-4b-4c=b(a-4)+c(a-4)=(a-4)(b+c) б) 3a-3m-ay+my=3(a-m)-y(a-m)=(a-m)(3-y)