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受欢迎的代数 >

(X-4)^2=169

解答

(X - 4)^{2} = 169

解答

X = 17, X = - 9

求解步骤

(X - 4)^{2} = 169

对于

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

解为

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

解

X - 4 = 169 : X = 17

解

X - 4 = - 169 : X = - 9

二次方程组的解是:

X = 17, X = - 9

作图

流行的例子

s^{2} + 5 s = - 6

9x^2+17x+9=3x^2

9 x^{2} + 17 x + 9 = 3 x^{2}

- x^{2} - 3 x - 6 = 5 x - 8

7 x (x + 4) + 6 = 5

x (5 x - 8) = - 3