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標題:
中二簡單factorization~~~
發問:
a.factorize 2a^2b^2-4ab b.factorize 3ab-6 c.by using the results of (a) and (b),factorize 2a^2b^2-ab-6 d.factorize -4n^2+25p^2 列埋steps唔該
a)2a2b2-4ab =2ab(ab-2) b)3ab-6 =3(ab-2) c) 2a2b2-ab-6 =2a2b2-4ab+3ab-6 =2ab(ab-2)+3(ab-2) =(ab-2)(2ab+3) d)-4n2+25p2 =25p2-4n2 =(5p-2n)(5p+2n)
其他解答:
中二簡單factorization~~~
發問:
a.factorize 2a^2b^2-4ab b.factorize 3ab-6 c.by using the results of (a) and (b),factorize 2a^2b^2-ab-6 d.factorize -4n^2+25p^2 列埋steps唔該
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最佳解答:a)2a2b2-4ab =2ab(ab-2) b)3ab-6 =3(ab-2) c) 2a2b2-ab-6 =2a2b2-4ab+3ab-6 =2ab(ab-2)+3(ab-2) =(ab-2)(2ab+3) d)-4n2+25p2 =25p2-4n2 =(5p-2n)(5p+2n)
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