Question

-0,6c^7d^7×(0,5cd^2)^2

Answer 1

$-0.6c^7d^7*(0.5cd^2)^2=-0.6c^7d^7*0.25c^2d^4=-0.6*0.25c^{7+2}d^{7+4}= \ =-0.15c^9d^{11}$