x^2+-2x+-4=3

Simple and best practice solution for x^2+-2x+-4=3 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for x^2+-2x+-4=3 equation:


Simplifying
x2 + -2x + -4 = 3

Reorder the terms:
-4 + -2x + x2 = 3

Solving
-4 + -2x + x2 = 3

Solving for variable 'x'.

Reorder the terms:
-4 + -3 + -2x + x2 = 3 + -3

Combine like terms: -4 + -3 = -7
-7 + -2x + x2 = 3 + -3

Combine like terms: 3 + -3 = 0
-7 + -2x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '7' to each side of the equation.
-7 + -2x + 7 + x2 = 0 + 7

Reorder the terms:
-7 + 7 + -2x + x2 = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -2x + x2 = 0 + 7
-2x + x2 = 0 + 7

Combine like terms: 0 + 7 = 7
-2x + x2 = 7

The x term is -2x.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2x + 1 + x2 = 7 + 1

Reorder the terms:
1 + -2x + x2 = 7 + 1

Combine like terms: 7 + 1 = 8
1 + -2x + x2 = 8

Factor a perfect square on the left side:
(x + -1)(x + -1) = 8

Calculate the square root of the right side: 2.828427125

Break this problem into two subproblems by setting 
(x + -1) equal to 2.828427125 and -2.828427125.

Subproblem 1

x + -1 = 2.828427125 Simplifying x + -1 = 2.828427125 Reorder the terms: -1 + x = 2.828427125 Solving -1 + x = 2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 2.828427125 + 1 Combine like terms: -1 + 1 = 0 0 + x = 2.828427125 + 1 x = 2.828427125 + 1 Combine like terms: 2.828427125 + 1 = 3.828427125 x = 3.828427125 Simplifying x = 3.828427125

Subproblem 2

x + -1 = -2.828427125 Simplifying x + -1 = -2.828427125 Reorder the terms: -1 + x = -2.828427125 Solving -1 + x = -2.828427125 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -2.828427125 + 1 Combine like terms: -1 + 1 = 0 0 + x = -2.828427125 + 1 x = -2.828427125 + 1 Combine like terms: -2.828427125 + 1 = -1.828427125 x = -1.828427125 Simplifying x = -1.828427125

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.828427125, -1.828427125}

See similar equations:

| 8p-7-5=-6-5p+7p | | 2x+3x+7=62 | | -(4a-4)=12+2a | | 1=-4a+3a | | 9+11z-8=9z+55-7z | | .15(2p+1.50)=11.50 | | 25x^2+49=7x | | 0=x^3-6ax^2+9a^2*x | | (x-2)2-(3-x)2=0 | | f=x^3-6ax^2+9a^2*x | | X-(-3x-5)=7x+4 | | g(x)=9x/6x-11 | | (q-4)*4=24 | | -8a+b=-1forb | | 14,952-6z-/3 | | 2-x=x^4 | | P=twn | | N-8+3+6n= | | 4+1n(x+3)=7 | | Log(8)((8p)/(7k)) | | 4(a-3)=68 | | f(-x)=2x^2+4x+6 | | 10x-13+6x+1= | | 1X+-4+-3X=-2X+-3+-1 | | r^4-r^2-12=0 | | 40/11= | | 5x^2-27=5x+3 | | -2(-8u+8)-4u=6(u-1)-7 | | x^2+6xy+2Y^2=21 | | 4t^3-24t^2-1000=0 | | 0.3x-0.8x-39=1 | | -4(y+4)=y-9+5(2y+1) |

Equations solver categories