用因式分解解题
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用因式分解解题
用因式分解解题
用因式分解解题
36(x+y)²-49(x-y)²
=[6(x+y)+7(x-y)][6(x+y)-7(x-y)]
=(13x-y)(13y-x)
(13x-y)(13y-x)
(6(x+y)—7(x—y))*(6(x+y)+7(x—y))
用因式分解解题
用因式分解解题
用因式分解解题
36(x+y)²-49(x-y)²
=[6(x+y)+7(x-y)][6(x+y)-7(x-y)]
=(13x-y)(13y-x)
(13x-y)(13y-x)
(6(x+y)—7(x—y))*(6(x+y)+7(x—y))