x^2=-3x+6

Simple and best practice solution for x^2=-3x+6 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+6 equation:


Simplifying
x2 = -3x + 6

Reorder the terms:
x2 = 6 + -3x

Solving
x2 = 6 + -3x

Solving for variable 'x'.

Reorder the terms:
-6 + 3x + x2 = 6 + -3x + -6 + 3x

Reorder the terms:
-6 + 3x + x2 = 6 + -6 + -3x + 3x

Combine like terms: 6 + -6 = 0
-6 + 3x + x2 = 0 + -3x + 3x
-6 + 3x + x2 = -3x + 3x

Combine like terms: -3x + 3x = 0
-6 + 3x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 3x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + 3x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 3x + x2 = 0 + 6
3x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
3x + x2 = 6

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 = 6 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 6 + 2.25

Combine like terms: 6 + 2.25 = 8.25
2.25 + 3x + x2 = 8.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + 1.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + 1.5 = 2.872281323 Simplifying x + 1.5 = 2.872281323 Reorder the terms: 1.5 + x = 2.872281323 Solving 1.5 + x = 2.872281323 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 = 2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 2.872281323 + -1.5 x = 2.872281323 + -1.5 Combine like terms: 2.872281323 + -1.5 = 1.372281323 x = 1.372281323 Simplifying x = 1.372281323

Subproblem 2

x + 1.5 = -2.872281323 Simplifying x + 1.5 = -2.872281323 Reorder the terms: 1.5 + x = -2.872281323 Solving 1.5 + x = -2.872281323 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 = -2.872281323 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -2.872281323 + -1.5 x = -2.872281323 + -1.5 Combine like terms: -2.872281323 + -1.5 = -4.372281323 x = -4.372281323 Simplifying x = -4.372281323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.372281323, -4.372281323}

See similar equations:

| -5-7x+2x=-35 | | -6x^2+18x+108=0 | | 5[x+2]-9=21 | | 6x-(2x+8)=3x(x+6)-14 | | -26=-x+3x-8 | | 9=3x-12 | | Z=4x-2y | | 4v+6+3=17 | | 4c-5=5 | | -2(9+-10f)+-8f= | | a^2=10a+25 | | [x-8]+11=13 | | 882=36x+1800y | | -52=6x+4x+8 | | 0=2.5f-2.5f | | x^2+5x-24=o | | 4-5n=4n+2 | | 3cos^2x-5sinx+1=0 | | -10.6+-2.5(2.5+-4.2b)= | | 19.65+14.2j=12.8j-4.15 | | 7=-x+4x+7 | | X+y=115 | | 3.9(-7.6+-8.3z)= | | -13.59-12n-7.6n=18.17-19.6n | | y=1/3-3y+4 | | -6a+3+7a=8-26 | | (4x+8)+(2x+3)=180 | | -6+2x+5x=36 | | 3x-2x-2x=6-12+8 | | -6.7(-2.3+-8.1k)+-3.6k= | | 6(f+5)=7.3-0.2f | | 11.77-0.5b=-1.6b |

Equations solver categories