Question

Раскройте скобки 5x(a+11). Cx(7-12d). 6x(2n-m). (n-m) x 15p. 3x(5p+k+6t). (2p-4k+6t) x2a

Answer 1

5(а+11)=5a+55 c(7-12d)=7c-12dc 6(2n-m)=12n-6m (n-m)15p=15pn-15pm 3(5p+k+6t)=15p+3k+18t (2p-4k+6t)2a=4ap-8ak+12at