solvefor a,sqrt(ma-N)=r

解答

求解

a, ma - N = r

a = \frac{r ^{2} + N}{m}

求解步骤

ma - N = r

两边进行平方:

ma - N = r^{2}

ma - N = r^{2}

解

ma - N = r^{2} : a = \frac{r ^{2} + N}{m}

a = \frac{r ^{2} + N}{m}

22 = 4 x

m + 2 = m + 12

x + 7 + x = 3

4 x = 15 x^{2} + 5 x + 14

- 4 x + 1 + 4 x + 3 = 2