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受欢迎的代数 >

5(x-3)^2=-225

解答

5 (x - 3)^{2} = - 225

解答

x = 35 i + 3, x = - 35 i + 3

求解步骤

5 (x - 3)^{2} = - 225

两边除以

5

(x - 3)^{2} = - 45

对于

(g (x))^{2} = f (a)

解为

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

解

x - 3 = - 45 : x = 35 i + 3

解

x - 3 = - - 45 : x = - 35 i + 3

二次方程组的解是:

x = 35 i + 3, x = - 35 i + 3

作图

流行的例子

16 x^{2} - 24 x - 25 = 0

solvefor y,x^2+y^2+4x-2y+5=0

so l v e f or y, x^{2} + y^{2} + 4 x - 2 y + 5 = 0

(- x - 5) (2 x + 4) = 0

x^{2} - \frac{1}{3} x - 2 = 0

(x + 25)^{2} + 7 = 0