(m^2+3m)^2-8(m^2+3m)-20分解因式等多少?

问题描述:

(m^2+3m)^2-8(m^2+3m)-20分解因式等多少?

(m^2+3m)^2-8(m^2+3m)-20 =(m^2+3m-10)(m^2+3m+2) =(m+5)(m-2)(m+1)(m+2) 祝学习愉快!