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受欢迎的代数 >

(3x-4)^2+2-(1-x)=(1-3x)^2

解答

(3 x - 4)^{2} + 2 - (1 - x) = (1 - 3 x)^{2}

解答

x = \frac{16}{17}

+1

十进制

x = 0.94117 \dots

求解步骤

(3 x - 4)^{2} + 2 - (1 - x) = (1 - 3 x)^{2}

展开

(3 x - 4)^{2} + 2 - (1 - x) : 9 x^{2} - 23 x + 17

展开

(1 - 3 x)^{2} : 1 - 6 x + 9 x^{2}

9 x^{2} - 23 x + 17 = 1 - 6 x + 9 x^{2}

将

17

到右边

9 x^{2} - 23 x = 9 x^{2} - 6 x - 16

两边减去

9 x^{2} - 6 x

9 x^{2} - 23 x - (9 x^{2} - 6 x) = 9 x^{2} - 6 x - 16 - (9 x^{2} - 6 x)

化简

- 17 x = - 16

两边除以

- 17

x = \frac{16}{17}

作图

流行的例子

solvefor x,3x+6y=-12

so l v e f or x, 3 x + 6 y = - 12

(19)(12)=(10+9)(10+2)

(19) (12) = (10 + 9) (10 + 2)

x - 9 = - 20

x - 9 = - 13

solvefor x,5x+2y=λx

so l v e f or x, 5 x + 2 y = λ x