(3x²-y²)²-(2x²+3y²)² 因式分解快呀,作业啊,各位大神help me

(3x²-y²)²-(2x²+3y²)² 因式分解快呀,作业啊,各位大神help me
(3x²-y²)²-(2x²+3y²)² 因式分解
快呀,作业啊,各位大神help me

(3x²-y²)²-(2x²+3y²)² 因式分解快呀,作业啊,各位大神help me
原式=【(3x²-y²)-(2x²+3y²)】【(3x²-y²）+（2x²+3y²)】
=(x²-4y²)(5x²+2y²)= (x-2y) (x+2y)(5x²+2y²)

(5x^2+2y^2)(x+2y)(x-2y)