展开 (3x^2)/((x-3)^2)

解答

展开

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

\frac{3 x ^{2}}{x ^{2} - 6 x + 9}

求解步骤

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

(x - 3)^{2} = x^{2} - 6 x + 9

= \frac{3 x ^{2}}{x ^{2} - 6 x + 9}

e x p an d x (20.4 + k (x) = k (x) \cdot cosh (\frac{72 - x}{k ( x )}))

e x p an d (a - x) d y - (a + y) d x

e x p an d 2 (2 x^{2} + 3 x - 10)^{2}

e x p an d - \frac{2 x y}{( x ^{2} + 1 ) ( e ^{y} + ln ( x ^{2} + 1 ) )}

e x p an d \frac{1}{4} (\frac{2 - x}{3})^{3}