Question

-10a^2b^4•5a•(b^3)^2=

Answer 1

$-10a^2b^4*5a*(b^3)^2=-10*a^2*b^4*5*a*b^{3*2}=\\\\ =-10*a^2*b^4*5*a^1*b^{6}=\\\\ =-10*5*a^2*a^1*b^4*b^6=\\\\ =-50*a^{2+1}*b^{4+6}=\\\\ =-50*a^3*b^{10}=-50a^3b^{10}$