分解因式: (1) x+y+(x+y)²-2 (2)a²+2a+4b²+4b+4ab-3

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分解因式: (1) x+y+(x+y)²-2 (2)a²+2a+4b²+4b+4ab-3

分解因式: (1) x+y+(x+y)²-2 (2)a²+2a+4b²+4b+4ab-3
分解因式: (1) x+y+(x+y)²-2 (2)a²+2a+4b²+4b+4ab-3

分解因式: (1) x+y+(x+y)²-2 (2)a²+2a+4b²+4b+4ab-3
(1)
x+y+(x+y)²-2
=(x+y-1)(x+y+2)
(2)
a²+2a+4b²+4b+4ab-3
=a²+4ab+4b²+2a+4b-3
=(a+2b)²+2(a+2b)-3
=(a+2b-1)(a+2b+3)

1)x+y+(x+y)²-2
=(x+y+2)(x+y-1)
2)a²+2a+4b²+4b+4ab-3
=a²+4ab+4b²+2(a+2b)-3
=(a+2b+3)(a+2b-1)