展开 6/((2x-8t)^2+3)

解答

展开

\frac{6}{( 2 x - 8 t ) ^{2} + 3}

\frac{6}{4 x ^{2} - 32 x t + 64 t ^{2} + 3}

求解步骤

\frac{6}{( 2 x - 8 t ) ^{2} + 3}

乘开

(2 x - 8 t)^{2} + 3 : 4 x^{2} - 32 x t + 64 t^{2} + 3

= \frac{6}{4 x ^{2} - 32 x t + 64 t ^{2} + 3}

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e x p an d e^{t - π} sin (2 t) u (t - π)

e x p an d 2 (e^{2} - e)

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e x p an d ln (q) (- \frac{1}{a} - 1) - ln (- a)