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受欢迎的代数 >

4=(x-4)^2

解答

4 = (x - 4)^{2}

解答

x = 6, x = 2

求解步骤

4 = (x - 4)^{2}

交换两边

(x - 4)^{2} = 4

对于

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

解为

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

解

x - 4 = 4 : x = 6

解

x - 4 = - 4 : x = 2

二次方程组的解是:

x = 6, x = 2

作图

流行的例子

quadraticformula 3x^2-7x+2=0

q u a d r a t i c f or m u l a 3 x^{2} - 7 x + 2 = 0

x^{2} + 6 x - 48 = 0

-5x^2+19x+176=-7x^2-x

- 5 x^{2} + 19 x + 176 = - 7 x^{2} - x

solvefor x,-x^2+7/2 x= 1/2 x^2-4x+6

so l v e f or x, - x^{2} + \frac{7}{2} x = \frac{1}{2} x^{2} - 4 x + 6

2 x^{2} + 3 x = 8