本课配套习题挑战模式1/5

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单选题
难度系数:

1.

分解因式:=(    )


A:

(x+1)(x-1)(x+3)(x-3)

B:

(x+1)(x+1)(x+3)(x-3)

C:

(x+1)(x+1)(x+3)(x+3)

D:

(x+1)(x-1)(x+3)(x+3)

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  • 提示2PHA+6L2s5YyW5Li65YWz5LqObeeahOS6jOasoeS4iemhueW8j++8mzwvcD4=