化简 sqrt(5)(3sqrt(5)-4sqrt(3))

解答

化简

5 (35 - 43)

15 - 415

十进制

- 0.49193 \dots

求解步骤

5 (35 - 43)

使用分配律:

a (b - c) = ab - a c

5 (35 - 43) = 5 \cdot 35 - 5 \cdot 43

= 5 \cdot 35 - 5 \cdot 43

5 \cdot 35 - 5 \cdot 43 = 15 - 415

= 15 - 415

\frac{x}{8} = \frac{3}{4}

4 x^{2} + 4 x - 7 = 0

3 x - 6 > - 24

f a c t or 5 x y^{3} - 80 x^{3} y

\frac{4 - m}{5} = \frac{2 - m}{6}