x^2+3x=2+0

Simple and best practice solution for x^2+3x=2+0 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+3x=2+0 equation:


Simplifying
x2 + 3x = 2 + 0

Reorder the terms:
3x + x2 = 2 + 0

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

Solving
3x + x2 = 2

Solving for variable 'x'.

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

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

Begin completing the square.

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + 3x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + 3x + x2 = 0 + 2

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

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

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 2 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 2 + 2.25

Combine like terms: 2 + 2.25 = 4.25
2.25 + 3x + x2 = 4.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 4.25

Calculate the square root of the right side: 2.061552813

Break this problem into two subproblems by setting 
(x + 1.5) equal to 2.061552813 and -2.061552813.

Subproblem 1

x + 1.5 = 2.061552813 Simplifying x + 1.5 = 2.061552813 Reorder the terms: 1.5 + x = 2.061552813 Solving 1.5 + x = 2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 2.061552813 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.061552813 + -1.5 x = 2.061552813 + -1.5 Combine like terms: 2.061552813 + -1.5 = 0.561552813 x = 0.561552813 Simplifying x = 0.561552813

Subproblem 2

x + 1.5 = -2.061552813 Simplifying x + 1.5 = -2.061552813 Reorder the terms: 1.5 + x = -2.061552813 Solving 1.5 + x = -2.061552813 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -2.061552813 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.061552813 + -1.5 x = -2.061552813 + -1.5 Combine like terms: -2.061552813 + -1.5 = -3.561552813 x = -3.561552813 Simplifying x = -3.561552813

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.561552813, -3.561552813}

See similar equations:

| 5y+7=22 | | (13x+4)/2 | | 7(4y-5)+7y= | | 112+-8W=6w+-168 | | 8(3x)= | | 5-1+13-x=24 | | 3x-4=14+5x | | 3w-6x-y+6w+17x-6y= | | (-2,9)m=-2 | | 8-2x=7x-19 | | 2y+16=24 | | a-6/8+4=16 | | -9+10z=33+3z | | z+9=13 | | =20x-70 | | 60/12+3*20/5(4) | | -5x+3=38 | | -4y+9=-51-14y | | y=4x^2+5x-2 | | 2x=-x+4 | | 5x^3+14x^2-24x=0 | | x/8=x/6-1 | | 3x-3y+12w-4y-3w+8x= | | 59-2x=7x+16 | | y+12=17 | | 9+7z-13z=-27 | | 5c-4c=2 | | 2a+3b=c | | 2y+23=27 | | 2(x-7)+4x=-x | | 6w+7y+8x+3x-14y+3w= | | 100-3x=5x-12 |

Equations solver categories