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受欢迎的代数 >

(c-1)^2+7=3

解答

(c - 1)^{2} + 7 = 3

解答

c = 2 i + 1, c = - 2 i + 1

求解步骤

(c - 1)^{2} + 7 = 3

将

7

到右边

(c - 1)^{2} = - 4

对于

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

解为

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

解

c - 1 = - 4 : c = 2 i + 1

解

c - 1 = - - 4 : c = - 2 i + 1

二次方程组的解是:

c = 2 i + 1, c = - 2 i + 1

作图

流行的例子

x^{2} - x - 17 = 3

solvefor x,z=3x^2+xy-2y^2

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

solvefor x,x^2+y^2+2x-3y+6=0

so l v e f or x, x^{2} + y^{2} + 2 x - 3 y + 6 = 0

(x + 5) (x + 2) + 2 = 0

quadraticformula x^2+6x+8=0

q u a d r a t i c f or m u l a x^{2} + 6 x + 8 = 0