solvefor n,n-31/4 =2

解答

求解

n, n - \frac{31}{4} = 2

n = \frac{39}{4}

十进制

n = 9.75

求解步骤

n - \frac{31}{4} = 2

将

\frac{31}{4}

到右边

n = \frac{39}{4}

f a c t or 3 x^{2} - 19 x + 28

e x p an d (2 a - b)^{5}

so l v e f or x, 1 0^{x} = 13

so l v e f or x, x^{2} = x

so l v e f or x, 4 x = 36