化简 10(log_{10}(x)-5)

解答

化简

10 (lo g_{10} (x) - 5)

10 lo g_{10} (x) - 50

求解步骤

10 (lo g_{10} (x) - 5)

使用分配律:

a (b - c) = ab - a c

10 (lo g_{10} (x) - 5) = 10 lo g_{10} (x) - 10 \cdot 5

= 10 lo g_{10} (x) - 10 \cdot 5

数字相乘:

10 \cdot 5 = 50

= 10 lo g_{10} (x) - 50

e x p an d (2 + 1) (3 + 1)

e x p an d 10 (10 - \frac{e ^{30} - 1}{3 e ^{30}})

e x p an d (x - 3) (x + 3 - 2)

s im pl i f y (x^{2} + 5) (3 - x)

e x p an d - \frac{2 ( 1 + 2026 )}{45}