展开 (x(0.65+x))/((0.0464-x)(0.0722-x))

解答

展开

\frac{x ( 0.65 + x )}{( 0.0464 - x ) ( 0.0722 - x )}

\frac{0.65 x + x ^{2}}{0.00335008 - 0.1186 x + x ^{2}}

求解步骤

\frac{x ( 0.65 + x )}{( 0.0464 - x ) ( 0.0722 - x )}

乘开

(0.0464 - x) (0.0722 - x) : 0.00335008 - 0.1186 x + x^{2}

= \frac{x ( x + 0.65 )}{0.00335008 - 0.1186 x + x ^{2}}

乘开

x (0.65 + x) : 0.65 x + x^{2}

= \frac{0.65 x + x ^{2}}{0.00335008 - 0.1186 x + x ^{2}}

e x p an d \frac{( n ^{n} )}{( n + 1 ) ^{n + 1}}

e x p an d [(4 - 2 i) x] 2 i

e x p an d \frac{( m + n ) ^{2}}{3 m - 3 n}

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

\frac{d}{d t} ((θ (t)) (4.1 t + 12.6 t^{2}))