Вправи: 104

104. Скоротіть дріб:

1) x2-y2 x2y+xy2 = x- y(x+ y)xy(x+ y) = x- yxy;

2) c4-36c2 12c+ 2c2 = c2(c2-36)2c(6+ c) = cc-6(c+6)2(c+6) = c(c-6)2;

3) a2b-10ab-25b5b2- ab2 = b(a2-10a+25)b2(5- a( = (a-5)2b(5- a) = (5- a)2b(5- a) = 5- ab.