展开 (((y-2x)^{(3)}))/((4x+6y))

解答

展开

\frac{( ( y - 2 x ) ^{(3)} )}{( 4 x + 6 y )}

\frac{y ^{3} - 6 y ^{2} x + 12 y x ^{2} - 8 x ^{3}}{4 x + 6 y}

求解步骤

\frac{( y - 2 x ) ^{3}}{4 x + 6 y}

(y - 2 x)^{3} = y^{3} - 6 y^{2} x + 12 y x^{2} - 8 x^{3}

= \frac{y ^{3} - 6 y ^{2} x + 12 y x ^{2} - 8 x ^{3}}{4 x + 6 y}

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