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受欢迎的代数 >

3(x+3)^2-46=17

解答

3 (x + 3)^{2} - 46 = 17

解答

x = 21 - 3, x = - 21 - 3

+1

十进制

x = 1.58257 \dots, x = - 7.58257 \dots

求解步骤

3 (x + 3)^{2} - 46 = 17

将

46

到右边

3 (x + 3)^{2} = 63

两边除以

3

(x + 3)^{2} = 21

对于

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

解为

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

解

x + 3 = 21 : x = 21 - 3

解

x + 3 = - 21 : x = - 21 - 3

二次方程组的解是:

x = 21 - 3, x = - 21 - 3

作图

流行的例子

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