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受欢迎的代数 >

2p^2-11=61

解答

2 p^{2} - 11 = 61

解答

p = 6, p = - 6

求解步骤

2 p^{2} - 11 = 61

将

11

到右边

2 p^{2} = 72

两边除以

2

p^{2} = 36

对于

x^{2} = f (a)

解为

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

p = 36, p = - 36

36 = 6

- 36 = - 6

p = 6, p = - 6

作图

流行的例子

3 v^{2} - 27 = 0

solvefor y,x^2-xy+1/2 y^2=3

so l v e f or y, x^{2} - x y + \frac{1}{2} y^{2} = 3

(3 x - 6)^{2} = - 48

y^{2} + 9 y + 2 = 8 y + 58

solvefor x,3x^2-5x-1=0

so l v e f or x, 3 x^{2} - 5 x - 1 = 0