x^2-3x+2=3

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


Simplifying
x2 + -3x + 2 = 3

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

Solving
2 + -3x + x2 = 3

Solving for variable 'x'.

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

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

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

Begin completing the square.

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + -3x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + -3x + x2 = 0 + 1

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

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

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 = 1 + 2.25

Reorder the terms:
2.25 + -3x + x2 = 1 + 2.25

Combine like terms: 1 + 2.25 = 3.25
2.25 + -3x + x2 = 3.25

Factor a perfect square on the left side:
(x + -1.5)(x + -1.5) = 3.25

Calculate the square root of the right side: 1.802775638

Break this problem into two subproblems by setting 
(x + -1.5) equal to 1.802775638 and -1.802775638.

Subproblem 1

x + -1.5 = 1.802775638 Simplifying x + -1.5 = 1.802775638 Reorder the terms: -1.5 + x = 1.802775638 Solving -1.5 + x = 1.802775638 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 = 1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.802775638 + 1.5 x = 1.802775638 + 1.5 Combine like terms: 1.802775638 + 1.5 = 3.302775638 x = 3.302775638 Simplifying x = 3.302775638

Subproblem 2

x + -1.5 = -1.802775638 Simplifying x + -1.5 = -1.802775638 Reorder the terms: -1.5 + x = -1.802775638 Solving -1.5 + x = -1.802775638 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 = -1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.802775638 + 1.5 x = -1.802775638 + 1.5 Combine like terms: -1.802775638 + 1.5 = -0.302775638 x = -0.302775638 Simplifying x = -0.302775638

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.302775638, -0.302775638}

See similar equations:

| 2x^4+11x^3+29x+12=0 | | -16.5=4.5y+8.5y | | 100+100x^2=112.32 | | 100+x^2=112.32 | | -43-4=3(1-9r) | | y=8x^2+11x | | x+(x+4)=5x-59 | | 2(3n+4)=8(8n+3)+9 | | 3x+3(2x+16)=129 | | -2n+3-5=22.5 | | 5x-4=1x+16 | | 5x-8=2x+22 | | 4x-10=3x+12 | | h=40t-16t^2 | | X+(x+4)=5(x+2)-69 | | 10-X=2+X | | 4x-3=1x+12 | | T=11psquared+s | | 0=x-1/35x^3 | | 10x+8=4x-40 | | 3(x-2)=9+x | | -2y=0.7 | | 1=b/6 | | 2x^3+2x=6x^2+6 | | 9x^2+8=22x | | -41-9z=-31-3z | | 4h+9-7h=36 | | .625x+.0625x=.3125+x | | 1.5x=6o | | (5x-4)+3=2(x-4) | | 4x-9=x^2-kx | | b/11-4=12 |

Equations solver categories