展开 x(xln(x)-x)

解答

展开

x (x ln (x) - x)

x^{2} ln (x) - x^{2}

求解步骤

x (x ln (x) - x)

使用分配律:

a (b - c) = ab - a c

a = x, b = x ln (x), c = x

= xx ln (x) - xx

化简

xx ln (x) - xx : x^{2} ln (x) - x^{2}

= x^{2} ln (x) - x^{2}

\frac{\partial}{\partial s} ((f (s, t)) (s^{2} - t^{2}))

e x p an d \frac{( x + 4 )}{( ( 3 \cdot x + 1 ) \cdot ( x ^{3} + 3 \cdot x ^{2} + 7 \cdot x ) )}

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

e x p an d (6 x) \cdot (2 x)

e x p an d (x^{2} - 9) y^{''} (x) - 12 x^{2} y^{'} (x) + 8 y