3x^2+5x-132=0

Simple and best practice solution for 3x^2+5x-132=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 3x^2+5x-132=0 equation:


Simplifying
3x2 + 5x + -132 = 0

Reorder the terms:
-132 + 5x + 3x2 = 0

Solving
-132 + 5x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-44 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + 1.666666667x + 44 + x2 = 0 + 44

Reorder the terms:
-44 + 44 + 1.666666667x + x2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 1.666666667x + x2 = 0 + 44
1.666666667x + x2 = 0 + 44

Combine like terms: 0 + 44 = 44
1.666666667x + x2 = 44

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 44 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 44 + 0.6944444447

Combine like terms: 44 + 0.6944444447 = 44.6944444447
0.6944444447 + 1.666666667x + x2 = 44.6944444447

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 44.6944444447

Calculate the square root of the right side: 6.685390373

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 6.685390373 and -6.685390373.

Subproblem 1

x + 0.8333333335 = 6.685390373 Simplifying x + 0.8333333335 = 6.685390373 Reorder the terms: 0.8333333335 + x = 6.685390373 Solving 0.8333333335 + x = 6.685390373 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 6.685390373 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 6.685390373 + -0.8333333335 x = 6.685390373 + -0.8333333335 Combine like terms: 6.685390373 + -0.8333333335 = 5.8520570395 x = 5.8520570395 Simplifying x = 5.8520570395

Subproblem 2

x + 0.8333333335 = -6.685390373 Simplifying x + 0.8333333335 = -6.685390373 Reorder the terms: 0.8333333335 + x = -6.685390373 Solving 0.8333333335 + x = -6.685390373 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -6.685390373 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -6.685390373 + -0.8333333335 x = -6.685390373 + -0.8333333335 Combine like terms: -6.685390373 + -0.8333333335 = -7.5187237065 x = -7.5187237065 Simplifying x = -7.5187237065

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.8520570395, -7.5187237065}

See similar equations:

| 3x+78=81 | | X^2-16x-20=0 | | n+3/5=7/2 | | 6x(x+2)+5=3x(x+1) | | 9x=12y+8 | | 6x^2-8x+216=0 | | 12x=-9y+4 | | 12y=-9x+2 | | 9y=12x+5 | | 3x-1*5=7 | | x-8.1=-3.3 | | X^2+9x=1 | | X+8*4=6 | | m+26=18 | | -3x^2=-5 | | 7.96x+1=0 | | p-7/12=-16 | | -4-3m+m^2= | | 4x^2-9x+9=0 | | 4(1)-4y=24 | | 30x+2y-12x+6y= | | c^2-15c+56= | | 2x^3=-16 | | 2m*3=24 | | x^3+12x^2+45x=0 | | b^2-9b+8= | | y^2-6y+8= | | w^2-w-6= | | T*6=18 | | s^2+4s-12= | | 3(2x-9)+22=-60 | | g^2+3g-10= |

Equations solver categories