展开 1/(2sqrt(x,))(x-1)+sqrt(x,)

解答

展开

\frac{1}{2 x ,} (x - 1) + x,

\frac{1}{2 , x} x - 1 \cdot \frac{1}{2 , x} + x,

求解步骤

\frac{1}{2 x ,} (x - 1) + x,

= \frac{1}{2 , x} (x - 1) +, x

乘开

\frac{1}{2 x ,} (x - 1) : \frac{1}{2 , x} x - 1 \cdot \frac{1}{2 , x}

= \frac{1}{2 , x} x - 1 \cdot \frac{1}{2 , x} + x,

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

e x p an d \frac{61 x + 204}{( x + 4 ) ^{2} ( x - 4 )}

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

e x p an d \frac{( 2 x + 3 ) ^{3}}{( 4 x ^{2} - 1 ) ^{8}}

e x p an d \frac{100}{( s + 2 ) ( s + 3 ) ( s + 5 )}