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受欢迎的代数 >

solvefor x,5x^2+5y^2=0

解答

求解

x, 5 x^{2} + 5 y^{2} = 0

解答

x = i y, x = - i y

求解步骤

5 x^{2} + 5 y^{2} = 0

将

5 y^{2}

到右边

5 x^{2} = - 5 y^{2}

两边除以

5

x^{2} = - y^{2}

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

x = - y^{2}, x = - - y^{2}

化简

- y^{2} : i y

化简

- - y^{2} : - i y

x = i y, x = - i y

作图

流行的例子

solvefor n,x=(n(n+1))/2

so l v e f or n, x = \frac{n ( n + 1 )}{2}

4.905t^2-25.11t+11=0

4.905 t^{2} - 25.11 t + 11 = 0

4 x^{2} + 21 x + 27 = 0

3+x(x-2)=6(x-2)

3 + x (x - 2) = 6 (x - 2)

x^{2} - 72 = 6 x