10=2x+x^2

Simple and best practice solution for 10=2x+x^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 10=2x+x^2 equation:


Simplifying
10 = 2x + x2

Solving
10 = 2x + x2

Solving for variable 'x'.

Reorder the terms:
10 + -2x + -1x2 = 2x + -2x + x2 + -1x2

Combine like terms: 2x + -2x = 0
10 + -2x + -1x2 = 0 + x2 + -1x2
10 + -2x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
10 + -2x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-10 + 2x + x2 = 0

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 2x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + 2x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 2x + x2 = 0 + 10
2x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
2x + x2 = 10

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 = 10 + 1

Reorder the terms:
1 + 2x + x2 = 10 + 1

Combine like terms: 10 + 1 = 11
1 + 2x + x2 = 11

Factor a perfect square on the left side:
(x + 1)(x + 1) = 11

Calculate the square root of the right side: 3.31662479

Break this problem into two subproblems by setting 
(x + 1) equal to 3.31662479 and -3.31662479.

Subproblem 1

x + 1 = 3.31662479 Simplifying x + 1 = 3.31662479 Reorder the terms: 1 + x = 3.31662479 Solving 1 + x = 3.31662479 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 = 3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + x = 3.31662479 + -1 x = 3.31662479 + -1 Combine like terms: 3.31662479 + -1 = 2.31662479 x = 2.31662479 Simplifying x = 2.31662479

Subproblem 2

x + 1 = -3.31662479 Simplifying x + 1 = -3.31662479 Reorder the terms: 1 + x = -3.31662479 Solving 1 + x = -3.31662479 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 = -3.31662479 + -1 Combine like terms: 1 + -1 = 0 0 + x = -3.31662479 + -1 x = -3.31662479 + -1 Combine like terms: -3.31662479 + -1 = -4.31662479 x = -4.31662479 Simplifying x = -4.31662479

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.31662479, -4.31662479}

See similar equations:

| 8x^3+48x^2+96x-21=0 | | q^2+14q=0 | | 2x=11y+7 | | 2x=-30+4y | | 3=3-3a-5a | | 2x=13y+3 | | 12x-4x=-48 | | 0.3x+10.6=x-6.97 | | 7x+5=-107 | | 2(4x-2.1)=9x-4.2 | | -0.5x+3.81=-0.7x+8.41 | | 3x-2=16x-80 | | 6x-6=2x-2 | | x^2-5x-150= | | X=-18+(24-3)+69 | | 300x-0.42=100x+0.04 | | X=-18+(24-3) | | 2.3x-51=1.1x+3 | | 8.6x+3-5.6x=9 | | 3x-16.2=x | | 7x+5.89=4x+10 | | 9.4=9x+1.3 | | (-4n-6)(2n+5)= | | Sqrt(-2v+20)=v+2 | | 0.5x+0.2=-0.8 | | 11/5x-1/5=2 | | 6(x-3.3)=7.8 | | 7.1a+4.16=-33.47 | | 2(3x-5)=3x+1 | | 6.3x=-13.86 | | x-8=2.47 | | -4y=3.96 |

Equations solver categories