因式分解 (4x+3y)²-(2x+y)²(a+b+c)²-(a+b-c)²4(2p+3q)²-(3p-q)²(x²+y²)-x²y²

因式分解 (4x+3y)²-(2x+y)²(a+b+c)²-(a+b-c)²4(2p+3q)²-(3p-q)²(x²+y²)-x²y²
因式分解 (4x+3y)²-(2x+y)²
(a+b+c)²-(a+b-c)²
4(2p+3q)²-(3p-q)²
(x²+y²)-x²y²

因式分解 (4x+3y)²-(2x+y)²(a+b+c)²-(a+b-c)²4(2p+3q)²-(3p-q)²(x²+y²)-x²y²
(4x+3y)²-(2x+y)²
= (4x+3y+2x+y)(4x+3y-2x-y)
= （6x+4y）（2x+2y）
=4(3x+2y)(x+y)
(a+b+c)²-(a+b-c)²
=(a+b+c+a+b-c)(a+b+c-a-b+c)
=（2a+2b）（2c）
=4c（a+b）
4(2p+3q)²-(3p-q)²
=[2(2p+3q)+(3p-q)][2(2p+3q)-(3p-q)]
=(7p+5q)(p+7q)
(x²+y²)²-x²y² 有平方吧
=(x²+y²+xy）（x²+y²-xy）