a^2*b*(2*a^3*b - 5*a*b^4), open the brackets:

a^2*b*2*a^3*b - a^2*b*5*a*b^4, group a's and b's:

2*(a^2*a^3)*(b*b) - 5*(a^2*a)*(b*b^4) and sum degrees (remember c=c^1 for any c):

2*a^5*b^2 - 5*a^3*b^5. So the answer is A.

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up