2x+x^2=2

Simple and best practice solution for 2x+x^2=2 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 2x+x^2=2 equation:


Simplifying
2x + x2 = 2

Solving
2x + x2 = 2

Solving for variable 'x'.

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

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

Begin completing the square.

Move the constant term to the right:

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

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

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

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

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 = 2 + 1

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

Combine like terms: 2 + 1 = 3
1 + 2x + x2 = 3

Factor a perfect square on the left side:
(x + 1)(x + 1) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(x + 1) equal to 1.732050808 and -1.732050808.

Subproblem 1

x + 1 = 1.732050808 Simplifying x + 1 = 1.732050808 Reorder the terms: 1 + x = 1.732050808 Solving 1 + x = 1.732050808 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 = 1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.732050808 + -1 x = 1.732050808 + -1 Combine like terms: 1.732050808 + -1 = 0.732050808 x = 0.732050808 Simplifying x = 0.732050808

Subproblem 2

x + 1 = -1.732050808 Simplifying x + 1 = -1.732050808 Reorder the terms: 1 + x = -1.732050808 Solving 1 + x = -1.732050808 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 = -1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.732050808 + -1 x = -1.732050808 + -1 Combine like terms: -1.732050808 + -1 = -2.732050808 x = -2.732050808 Simplifying x = -2.732050808

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.732050808, -2.732050808}

See similar equations:

| (n-5)180= | | 7(x+3)=9(x+4)-1 | | -53+11=-42 | | -6(n+4)+28=-2n-16 | | 2(7c+1)-60=7c+5 | | -4(y+4)=8 | | q^5=32 | | 1.1=2y+7.5 | | 15x+1/2=x+10 | | -4.4x-3=-4.2x+3 | | 13x5/16 | | x^2-6x+10whenx=8 | | M^3-2m^2+m-1= | | 6(2x+2.5)-7x=21.5 | | |b-19/3|=|2b/3-7| | | 2(4c+3)=84 | | 2x(-1)-4x(-1)-2= | | 3xsquared+4x=31 | | 3-4/x=13 | | 7k-4(3+8k)=-212 | | 4x-8=20-6x | | -7x+5(3-5x)=175 | | X^2+y^2+6x+4y+4=0 | | 2x^2y-xy-y=0 | | 3x-8=5x+15 | | b^2=6B-27 | | 2x=3,75-(-x)+6,25 | | 600=30X+10Y | | 1/2x=6/13 | | 5t+42=8t | | 2x-3,75=-x+6,25 | | x^2*y-x*y+y=x*lnx |

Equations solver categories