Question

Раскройте скобки 1)2(а+3b-7с) 2)0,4(1,3х-0,6у-1,3) 3)а-4d+3р)*(-0,8) 4)-0,4а(-4b+3p-1,1c)

Answer 1

2а+6b-14c;0.52x-0.24y-0.52;0.8a-3.2d+2.4p;1.6ab-1.2ap+0.44ac