0.2(50)=0,0.8x=0.4(50+x)

解答

0.2 (50) = 0, 0.8 x = 0.4 (50 + x)

假

求解步骤

0.2 (50) = 0

化简

0.2 (50) : 10

10 = 0

两侧不相等

假

so l v e f or x, f (x + 2) = f

- 3 x - 5 = 0

t (n) = 2 t (\frac{n}{2}) + n^{4}

5 a^{5} - x = 25 a x - 2

so l v e f or x, f - 1 (3) = 2 \frac{x}{5} - 1