有趣的因式分解2021-11-22因式分解:a2+3ab+2b2a^2+3ab+2b^2a2+3ab+2b2解:分别取两段线段,为线段 a、线段 b。a2+3ab+2b2=(a+2b)(a+b)a^2+3ab+2b^2=(a+2b)(a+b)a2+3ab+2b2=(a+2b)(a+b)#生活Share