-4а(а²-3ав+7в)10х(5х²-7у)-6х(5у+3х²)

Question

-4а(а²-3ав+7в)10х(5х²-7у)-6х(5у+3х²)

Answer 1

-4а(а²-3ав+7в)=-4a³+12a²в-28aв

10х(5х²-7у)-6х(5у+3х²) =50x³-70xy-30xy-18x³=32x³-100xy