3x+x^2=-1x+3

Simple and best practice solution for 3x+x^2=-1x+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 3x+x^2=-1x+3 equation:


Simplifying
3x + x2 = -1x + 3

Reorder the terms:
3x + x2 = 3 + -1x

Solving
3x + x2 = 3 + -1x

Solving for variable 'x'.

Reorder the terms:
-3 + 3x + x + x2 = 3 + -1x + -3 + x

Combine like terms: 3x + x = 4x
-3 + 4x + x2 = 3 + -1x + -3 + x

Reorder the terms:
-3 + 4x + x2 = 3 + -3 + -1x + x

Combine like terms: 3 + -3 = 0
-3 + 4x + x2 = 0 + -1x + x
-3 + 4x + x2 = -1x + x

Combine like terms: -1x + x = 0
-3 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 4x + 3 + x2 = 0 + 3

Reorder the terms:
-3 + 3 + 4x + x2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 4x + x2 = 0 + 3
4x + x2 = 0 + 3

Combine like terms: 0 + 3 = 3
4x + x2 = 3

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 3 + 4

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

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

Factor a perfect square on the left side:
(x + 2)(x + 2) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + 2) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + 2 = 2.645751311 Simplifying x + 2 = 2.645751311 Reorder the terms: 2 + x = 2.645751311 Solving 2 + x = 2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + x = 2.645751311 + -2 x = 2.645751311 + -2 Combine like terms: 2.645751311 + -2 = 0.645751311 x = 0.645751311 Simplifying x = 0.645751311

Subproblem 2

x + 2 = -2.645751311 Simplifying x + 2 = -2.645751311 Reorder the terms: 2 + x = -2.645751311 Solving 2 + x = -2.645751311 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + x = -2.645751311 + -2 x = -2.645751311 + -2 Combine like terms: -2.645751311 + -2 = -4.645751311 x = -4.645751311 Simplifying x = -4.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.645751311, -4.645751311}

See similar equations:

| -21+5x=-76 | | -(4y+1)-(-3y-4)=-3 | | 3x^2=1350 | | 4x-6-3x=-2 | | -45+6x=51 | | (7/n-4)+(7/4-n) | | 7x^2-11=-6x | | -11x+48=-84 | | yp+yv=x | | 5(2x-1)-2(3x)=5 | | 8-6c=-15 | | y^2+4y=-16 | | 1+5(1-5p)=-2p-40 | | 80+11x=201 | | 1/6(x+6)+1/18(x-18)=x+14 | | 40x+20y=-11 | | 3y+12=84-6y | | 19x+1=11x-1 | | -16t^2+76t+6.3=0 | | 13+2=-5(6x-3) | | 36x+2=23x+1 | | -4.9t^2+27t+1=0 | | 8n+2n=134 | | 5(x-6)=3x | | 4(2x-1)=2(3x+6) | | .8=-.57 | | 18=7x+7x+4 | | 23x+1=36x+2 | | n-13=-10 | | 2(2x+4)=2x+24 | | n+33=50 | | 0.07x+4.59=4.73 |

Equations solver categories