化简 (25)/((sqrt(10)))

解答

化简

\frac{25}{( 10 )}

\frac{5 5}{2}

十进制

7.90569 \dots

求解步骤

\frac{25}{10}

因式分解数字:

25 = 5 \cdot 5

= \frac{5 \cdot 5}{10}

因式分解

10 : 52

= \frac{5 \cdot 5}{5 2}

\frac{5 \cdot 5}{5} = 5 \cdot 5

= \frac{5 \cdot 5}{2}

= \frac{5 5}{2}

s im pl i f y 18.5 \cdot 25%

so l v e f or x, 4^{x} = 18

so l v e f or x, 7 x = 14

so l v e f or x, ∣ x ∣ = - 11

f a c t or 3 x^{2} - 14 x - 5 = 0