Question

(-2x^4)^4 y^3+2x^10(-2x^2 y)^3+2x^4*5(x^4)^3(3y)^3

Answer 1

(-2x^4)^4 y^3+2x^10(-2x^2 y)^3+2x^4*5(x^4)^3(3y)^3

=16x^16 y^3+2x^10*(-8x^6 y^3)+10x^4*x^12*27y^3

=16x^16 y^3-16x^16 y^3+270x^16y^3

=270x^16y^3