展开 (2x)/((x-3)^2)

解答

展开

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

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

求解步骤

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

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

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

- \frac{8 s + 4}{s ^{2} ( s + 4 )}

\frac{- 38 x + 188.5}{( - 2 x + 37 ) ( 19 x + 506 )}

cos ((n + 2) π)

\frac{d ^{2}}{d x ^{2}} ((f (x)) (- 3 x^{2} + 2 x))

\frac{( 5 x ^{2} - 25 x + 28 )}{( x ^{2} ( x - 7 ) )}