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受欢迎的代数 >

36=x^2+x^2

解答

36 = x^{2} + x^{2}

解答

x = 32, x = - 32

+1

十进制

x = 4.24264 \dots, x = - 4.24264 \dots

求解步骤

36 = x^{2} + x^{2}

交换两边

x^{2} + x^{2} = 36

同类项相加:

x^{2} + x^{2} = 2 x^{2}

2 x^{2} = 36

两边除以

2

x^{2} = 18

对于

x^{2} = f (a)

解为

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

x = 18, x = - 18

18 = 32

- 18 = - 32

x = 32, x = - 32

作图

流行的例子

solvefor y,x^2+xy-2y^2=0

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

x^{2} + 8 x - 49 = - 4

3 (4 x + 3)^{2} + 1 = 16

\frac{x}{3} x + 10 = 15

roo t s x^{2} + 1 = 0