a=sqrt(ky^2)

解答

a = k y^{2}

y = \frac{a}{k}, y = - \frac{a}{k}

求解步骤

a = k y^{2}

两边进行平方:

a^{2} = k y^{2}

a^{2} = k y^{2}

解

a^{2} = k y^{2} : y = \frac{a}{k}, y = - \frac{a}{k}

y = \frac{a}{k}, y = - \frac{a}{k}

8 x + 6 - 7 = - 79

7 x^{3} - 35 x^{\frac{5}{2}} = 0

10 - 3 3 x + 1 = 7

5 = x - 2

6 x + 7 = 5