factorize佢地(全部計算機無法計算/無法化為分數)
1) 7x²+7+4x
=7x²+4x+7
2) 10n+3-12n²
=-(12n²-10n-3)
3) 3x²-21x-30
=3(x²-7x-10)
4) 64-4x²+6x
=-2(2x²-3x-32)
5) 4p²-9p+6
6) 18b²-16a²-24ab
=2(9b²-12ab-8a²)
7) 2x+ax-2y-by
=x(2+a)-y(2+b)
以上，求各位大大指教一下
F3數學題Factorization(偏難...求高手解答)
2011-10-31 3:01 pm
回答 (2)
2011-10-31 7:28 pm
✔ 最佳答案
1)7x²+7+4x=7x²+4x+7 <---[Unfactorizable*] 2)10n+3-12n²=-12n²+10n+3 <---[Unfactorizable*]
3)3x²-21x-30
=3(x²-7x-10) <---[Unfactorizable anymore*]
4)64-4x²+6x
=2(-2x²+3x+32) <---[Unfactorizable anymore*]
5)4p²-9p+6 <---[Unfactorizable*]
6)18b²-16a²-24ab
=2(9b²-12ab-8a²) <---[Unfactorizable anymore*] 7)2x+ax-2y-by <---[Unfactorizable*] *You can refer to: http://wims.unice.fr/wims/wims.cgi?module=tool/algebra/factor.en
參考: Hope I Can Help You ! ^_^ ( From Me )
2011-11-01 5:51 am
parabola = ="
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