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受欢迎的代数 >

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

解答

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

解答

x = 3

求解步骤

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

3^{2} = 9

9 + (x + 1)^{2} = (x + 2)^{2}

展开

9 + (x + 1)^{2} : x^{2} + 2 x + 10

展开

(x + 2)^{2} : x^{2} + 4 x + 4

x^{2} + 2 x + 10 = x^{2} + 4 x + 4

将

10

到右边

x^{2} + 2 x = x^{2} + 4 x - 6

两边减去

x^{2} + 4 x

x^{2} + 2 x - (x^{2} + 4 x) = x^{2} + 4 x - 6 - (x^{2} + 4 x)

化简

- 2 x = - 6

两边除以

- 2

x = 3

作图

流行的例子

(6x-8}{33}=\frac{x-2)/3-(1-5x)/6

\frac{6 x - 8}{33} = \frac{x - 2}{3} - \frac{1 - 5 x}{6}

solvefor a,a+b=3

so l v e f or a, a + b = 3

(3x)/4+(2x)/3 = 17/12

\frac{3 x}{4} + \frac{2 x}{3} = \frac{17}{12}

(2 - 2 i) z = 10

19d-16d-d-d-1=12

19 d - 16 d - d - d - 1 = 12