Разложи на множители 63am+32mu−36au−56m2

63am+32mu-36au-56m^2=(63am-36au)-(-32mu+56m^2)=9a(7m-4u)-8(-4u+7m)=(7m-4u)(9a-8)

(63am-36au)+(32mu-56m2)=3a (21m-12u)+8m(4u-7m)