****-2x^2(-5x^2+4x^3) in standard form?
-2x^2(-5x^2+4x^3)=10x^4-8x^5
\(-2 x^{2} (-5 x^{2} +4 x^{3} )\) Use distributive property\(-2 x^{2} (-5 x^{2}) +-2 x^{2} (4 x^{3} )\)\(10 x^{2+2} +-8 x^{2+3}\)\(10 x^{4}+ -8 x^{5}\)\(-8 x^{5}+ 10 x^{4}\) <-answer
