因式分解 6x的2次方-11x+7
希望我能看懂.
人气:279 ℃ 时间:2020-04-01 04:41:59
解答
6x的2次方 - 11x - 7
=(2x+1)(3x-7)
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运用十字相乘法:
2x 1
\ /
/ \
3x -7
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