展开 4(pi+8)

解答

展开

4 (π + 8)

4 π + 32

十进制

44.56637 \dots

求解步骤

4 (π + 8)

使用分配律:

a (b + c) = ab + a c

a = 4, b = π, c = 8

= 4 π + 4 \cdot 8

数字相乘:

4 \cdot 8 = 32

= 4 π + 32

e x p an d \frac{6}{x ( x - 3 )}

e x p an d \frac{a}{s ^{2} ( s ^{2} + b )}

e x p an d (cos (x) + i sin (x))^{4}

\frac{\partial}{\partial x} ((z) (x^{2} + x y^{2} z))

\frac{d}{d y} ((x) ((1 + 2 x)^{6}))