展开 x^2(e^{3s}-1)

解答

展开

x^{2} (e^{3 s} - 1)

e^{3 s} x^{2} - x^{2}

求解步骤

x^{2} (e^{3 s} - 1)

使用分配律:

a (b - c) = ab - a c

a = x^{2}, b = e^{3 s}, c = 1

= x^{2} e^{3 s} - x^{2} \cdot 1

= e^{3 s} x^{2} - 1 \cdot x^{2}

乘以:

1 \cdot x^{2} = x^{2}

= e^{3 s} x^{2} - x^{2}

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

e x p an d \frac{12 x + 7}{4} - \frac{30 - 18 x}{6}

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

e x p an d \frac{e ^{t} ( cos ( t ) - cos ( 2 t ) )}{t}

\frac{d}{d x} ((z (x, y)) (x^{3} y - y^{y}))