展开 4/(3(2x-1)^2)

解答

展开

\frac{4}{3 ( 2 x - 1 ) ^{2}}

\frac{4}{12 x ^{2} - 12 x + 3}

求解步骤

\frac{4}{3 ( 2 x - 1 ) ^{2}}

(2 x - 1)^{2} = 4 x^{2} - 4 x + 1

= \frac{4}{3 ( 4 x ^{2} - 4 x + 1 )}

乘开

3 (4 x^{2} - 4 x + 1) : 12 x^{2} - 12 x + 3

= \frac{4}{12 x ^{2} - 12 x + 3}

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