simplify. -2x^5(x^7)+(x^3)^4-(4x^5)^2(-x^2)

Answer 1

-2x^5x^7 + (x^3)^4 + - (4x^5)^2 (-x^2)=
-2x^12 + x^12 - 16x^10(x^2) = -x^12 -
16x^12 = -17x^12.