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Quadratic equation
發問:
Find the range of 1/(2x^2-5x-42). x is a real no.
最佳解答:
1/(2x^2-5x-42) =1/(2x+7)(x-6) Since 1/0 would be undefined, thus, x can be any real no. except x=6 or x=-7/2
其他解答:
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標題:
此文章來自奇摩知識+如有不便請留言告知
Quadratic equation
發問:
Find the range of 1/(2x^2-5x-42). x is a real no.
最佳解答:
1/(2x^2-5x-42) =1/(2x+7)(x-6) Since 1/0 would be undefined, thus, x can be any real no. except x=6 or x=-7/2
其他解答:
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