x^2-6x+x^2+9x=50

Simple and best practice solution for x^2-6x+x^2+9x=50 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^2-6x+x^2+9x=50 equation:


Simplifying
x2 + -6x + x2 + 9x = 50

Reorder the terms:
-6x + 9x + x2 + x2 = 50

Combine like terms: -6x + 9x = 3x
3x + x2 + x2 = 50

Combine like terms: x2 + x2 = 2x2
3x + 2x2 = 50

Solving
3x + 2x2 = 50

Solving for variable 'x'.

Reorder the terms:
-50 + 3x + 2x2 = 50 + -50

Combine like terms: 50 + -50 = 0
-50 + 3x + 2x2 = 0

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

Divide each side by '2'.
-25 + 1.5x + x2 = 0

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + 1.5x + 25 + x2 = 0 + 25

Reorder the terms:
-25 + 25 + 1.5x + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 1.5x + x2 = 0 + 25
1.5x + x2 = 0 + 25

Combine like terms: 0 + 25 = 25
1.5x + x2 = 25

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 25 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 25 + 0.5625

Combine like terms: 25 + 0.5625 = 25.5625
0.5625 + 1.5x + x2 = 25.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 25.5625

Calculate the square root of the right side: 5.055937104

Break this problem into two subproblems by setting 
(x + 0.75) equal to 5.055937104 and -5.055937104.

Subproblem 1

x + 0.75 = 5.055937104 Simplifying x + 0.75 = 5.055937104 Reorder the terms: 0.75 + x = 5.055937104 Solving 0.75 + x = 5.055937104 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 5.055937104 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 5.055937104 + -0.75 x = 5.055937104 + -0.75 Combine like terms: 5.055937104 + -0.75 = 4.305937104 x = 4.305937104 Simplifying x = 4.305937104

Subproblem 2

x + 0.75 = -5.055937104 Simplifying x + 0.75 = -5.055937104 Reorder the terms: 0.75 + x = -5.055937104 Solving 0.75 + x = -5.055937104 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -5.055937104 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -5.055937104 + -0.75 x = -5.055937104 + -0.75 Combine like terms: -5.055937104 + -0.75 = -5.805937104 x = -5.805937104 Simplifying x = -5.805937104

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.305937104, -5.805937104}

See similar equations:

| -2(5t-2)+3t=6t-4 | | 843-677= | | 4x-5/8+x=4x+5/4+3 | | (.15+x)(x+.05)= | | x/a+x/b=c | | 2x-2=2(x+4) | | -222-(-117)= | | 51-89= | | 3v^2-75=0 | | 3v^2+14-15=0 | | 71-123= | | 1.0095x-x=40000 | | Z=y+10 | | 10x+5y=0.75 | | 1/2t+7=4 | | 5v^2-26=24 | | 4d+3=3d-1 | | 3*(0.2x-5)-4*(0.3x-5)=10+0.4x | | -3(5x-6)=12 | | 4(y-1)=-12 | | r/5=8/10 | | 7-5/(5x-2)=0 | | mp^2+7m+3p^2+21=0 | | 5(3x-6)-4(x+1)-17= | | -173-162= | | 6x+8=2+x+6x | | c^2-176c+192=0 | | 5x^2+24x=384 | | 2c^2-176c+192=0 | | 2x-16x+30x= | | -2+7(1+4a)=31 | | 21x^2-10x-24=0 |

Equations solver categories