2x^2-33x+72=0

Simple and best practice solution for 2x^2-33x+72=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 2x^2-33x+72=0 equation:


Simplifying
2x2 + -33x + 72 = 0

Reorder the terms:
72 + -33x + 2x2 = 0

Solving
72 + -33x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
36 + -16.5x + x2 = 0

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -16.5x + -36 + x2 = 0 + -36

Reorder the terms:
36 + -36 + -16.5x + x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -16.5x + x2 = 0 + -36
-16.5x + x2 = 0 + -36

Combine like terms: 0 + -36 = -36
-16.5x + x2 = -36

The x term is -16.5x.  Take half its coefficient (-8.25).
Square it (68.0625) and add it to both sides.

Add '68.0625' to each side of the equation.
-16.5x + 68.0625 + x2 = -36 + 68.0625

Reorder the terms:
68.0625 + -16.5x + x2 = -36 + 68.0625

Combine like terms: -36 + 68.0625 = 32.0625
68.0625 + -16.5x + x2 = 32.0625

Factor a perfect square on the left side:
(x + -8.25)(x + -8.25) = 32.0625

Calculate the square root of the right side: 5.662375826

Break this problem into two subproblems by setting 
(x + -8.25) equal to 5.662375826 and -5.662375826.

Subproblem 1

x + -8.25 = 5.662375826 Simplifying x + -8.25 = 5.662375826 Reorder the terms: -8.25 + x = 5.662375826 Solving -8.25 + x = 5.662375826 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.25' to each side of the equation. -8.25 + 8.25 + x = 5.662375826 + 8.25 Combine like terms: -8.25 + 8.25 = 0.00 0.00 + x = 5.662375826 + 8.25 x = 5.662375826 + 8.25 Combine like terms: 5.662375826 + 8.25 = 13.912375826 x = 13.912375826 Simplifying x = 13.912375826

Subproblem 2

x + -8.25 = -5.662375826 Simplifying x + -8.25 = -5.662375826 Reorder the terms: -8.25 + x = -5.662375826 Solving -8.25 + x = -5.662375826 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.25' to each side of the equation. -8.25 + 8.25 + x = -5.662375826 + 8.25 Combine like terms: -8.25 + 8.25 = 0.00 0.00 + x = -5.662375826 + 8.25 x = -5.662375826 + 8.25 Combine like terms: -5.662375826 + 8.25 = 2.587624174 x = 2.587624174 Simplifying x = 2.587624174

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.912375826, 2.587624174}

See similar equations:

| -3(x-9)=12 | | 1/4y=12 | | -25=-7x+87 | | -3t+3=0 | | cos(x)*(2cos(x)-5)=0 | | 0.8+0.3x=5.0 | | -1/8q=9 | | v^2+v-55=5v | | 4(x+2)-x=26 | | 4x^2-9x=3x+2 | | 1=0.1x-0.6x-34 | | 7=4(n-7)+5(7n+7) | | 2(x-6)=33-3x | | (3x^2+7x)(16x^2-8x-3)=0 | | 3x(2x+7)=6x^2+14x-7 | | 16=-5(1-6x)+3(6x+7) | | 9x^2+6=27 | | 5x^2+12x=-7 | | 0.65x+0.05(12-x)=0.10(-78) | | 9s-5=9 | | x-19.1=0.1 | | -25=-7+87 | | 7y-2=5y^3 | | -8(8r-2)=3r+16 | | -0.10(39)+0.95x=0.05(x-6) | | n^2=-54-18n | | -3x+39=3 | | 4x-4=51-7x | | x^2+6x+41=-9x+5 | | 0.12y+0.06(y+5000)=1920 | | 8x^2+31x+2=0 | | 4x+13=8x+-7 |

Equations solver categories