Question

0.8xy^4(-6xy^4)^2
Прошу решить с объяснениями.

Answer 1

$0.8xy^{4}*(-6xy^{4})^{2}=0.8xy^{4}*(-6)^{2}*x^{2}*(y^{4})^{2}= \ 0.8xy^{4}*36*x^{2}*y^{4*2}=0.8xy^{4}*36*x^{2}*y^{8}= \ (0.8*36)*(x* x^{2} )*( y^{4}*y^{8})=28.8*x^{1+2}*y^{4+8}= \ 28.8x^{3}y^{12}$