代數分式及公式
回答 (1)
2011-08-26 5:18 pm
✔ 最佳答案
1-4x^2/2+4x答案係1-2x/2我要條算式,吳該: )1- 4x^2
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2 + 4x
(1+2x)(1-2x) (1 – 2x)
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2(1 + 2x) 2
(1 +2x) in both numerator and denominator cancel out.
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