-2x^2-3x+360=0

Simple and best practice solution for -2x^2-3x+360=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^2-3x+360=0 equation:


Simplifying
-2x2 + -3x + 360 = 0

Reorder the terms:
360 + -3x + -2x2 = 0

Solving
360 + -3x + -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'.
-180 + 1.5x + x2 = 0

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + 1.5x + 180 + x2 = 0 + 180

Reorder the terms:
-180 + 180 + 1.5x + x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 1.5x + x2 = 0 + 180
1.5x + x2 = 0 + 180

Combine like terms: 0 + 180 = 180
1.5x + x2 = 180

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 = 180 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 180 + 0.5625

Combine like terms: 180 + 0.5625 = 180.5625
0.5625 + 1.5x + x2 = 180.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 180.5625

Calculate the square root of the right side: 13.43735465

Break this problem into two subproblems by setting 
(x + 0.75) equal to 13.43735465 and -13.43735465.

Subproblem 1

x + 0.75 = 13.43735465 Simplifying x + 0.75 = 13.43735465 Reorder the terms: 0.75 + x = 13.43735465 Solving 0.75 + x = 13.43735465 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 = 13.43735465 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 13.43735465 + -0.75 x = 13.43735465 + -0.75 Combine like terms: 13.43735465 + -0.75 = 12.68735465 x = 12.68735465 Simplifying x = 12.68735465

Subproblem 2

x + 0.75 = -13.43735465 Simplifying x + 0.75 = -13.43735465 Reorder the terms: 0.75 + x = -13.43735465 Solving 0.75 + x = -13.43735465 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 = -13.43735465 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -13.43735465 + -0.75 x = -13.43735465 + -0.75 Combine like terms: -13.43735465 + -0.75 = -14.18735465 x = -14.18735465 Simplifying x = -14.18735465

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.68735465, -14.18735465}

See similar equations:

| 6+x+6x=-22 | | 3x-5(2x+8)=9 | | 4x+3(x+2)=-17 | | x-31-(1.3x-31)=x | | 2t-11-8t=42 | | y-6=3(x-5) | | 2x^7-15x^5+12x^4=0 | | 3(-5)-y=1 | | 4x+10-3=10x+70-5 | | -13+7[x+4(x+1)]=x | | 5x+4=-1-6 | | -5(2r-4)=100 | | 3(a+b)=m | | 2(3x-4)=14+5x | | 7(x-1)-9x=x | | 19600x^2+39200x=2009 | | 2(3x-4)=14 | | 14[8+5(x-10)]=x | | 3b-a=f | | x^2+11x=25 | | 0.15x-3.55=0.5x-2.5 | | 3+8[9-(8-2)]=x | | y^2=6y+40 | | 14b-18=15b+8 | | 109=.09x+x | | y=-3x^2+42x | | 7[3+4(2-5)]=x | | -5(2x+4)-7=42 | | 5(x-2)-4x=15 | | a-b=d | | -9+x/2=-11 | | 5x+12=4x+3 |

Equations solver categories