展开 e^x(e^x-2)

解答

展开

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

e^{2 x} - 2 e^{x}

求解步骤

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

使用分配律:

a (b - c) = ab - a c

a = e^{x}, b = e^{x}, c = 2

= e^{x} e^{x} - e^{x} \cdot 2

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

e^{x} e^{x} = e^{2 x}

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

e x p an d - 5^{n} + 7 (- 5^{n - 1})

\frac{d}{d t} ((C) (8000 + 2 x (C, t)))

e x p an d (5 x^{2} + x + 1) e^{x}

e x p an d (D + 6) (5 x - (D - 4) = 0)

e x p an d \frac{A ( x ) B ( y )}{( x + y ) ^{2}}