(x)(110^{-3})=(110^{-4})(25)

解答

(x) (1 \cdot 1 0^{- 3}) = (1 \cdot 1 0^{- 4}) (25)

x = \frac{5}{2}

十进制

x = 2.5

求解步骤

(x) (1 \cdot 1 0^{- 3}) = (1 \cdot 1 0^{- 4}) (25)

化简

(1 \cdot 1 0^{- 4}) (25) : \frac{1}{5 ^{2} \cdot 2 ^{4}}

(x) (1 \cdot 1 0^{- 3}) = \frac{1}{5 ^{2} \cdot 2 ^{4}}

化简

1 \cdot 1 0^{- 3} : \frac{1}{1000}

x \frac{1}{1000} = \frac{1}{5 ^{2} \cdot 2 ^{4}}

在两边乘以

1000

x = \frac{5}{2}

(x - 3)^{2} (x^{2} + x + 1) \geq 0

x^{4} - 9 x^{2} > 0

f a c t or 48 mn + 84 m^{2} - 56 n - 98 m

f a c t or 3 x^{5} - 2 x^{3} - 8 x

3 - (x + 9) \geq 4 - 3 x