Help me with this math problem?
回答 (1)
2017-10-02 4:52 pm
✔ 最佳答案
Let f(x) = ax( x + 3 )( x + 5 )f( - 4 ) = a( - 4 )( - 1 )( 1 ) = 4a = - 12
a = - 3
Ans : f(x) = - 3x( x + 3 )( x + 5 )
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https://hk.answers.yahoo.com/question/index?qid=20171001220426AAUnbxD