2x^2+5x=360

Simple and best practice solution for 2x^2+5x=360 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+5x=360 equation:


Simplifying
2x2 + 5x = 360

Reorder the terms:
5x + 2x2 = 360

Solving
5x + 2x2 = 360

Solving for variable 'x'.

Reorder the terms:
-360 + 5x + 2x2 = 360 + -360

Combine like terms: 360 + -360 = 0
-360 + 5x + 2x2 = 0

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

Divide each side by '2'.
-180 + 2.5x + x2 = 0

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + 2.5x + 180 + x2 = 0 + 180

Reorder the terms:
-180 + 180 + 2.5x + x2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 2.5x + x2 = 0 + 180
2.5x + x2 = 0 + 180

Combine like terms: 0 + 180 = 180
2.5x + x2 = 180

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = 180 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = 180 + 1.5625

Combine like terms: 180 + 1.5625 = 181.5625
1.5625 + 2.5x + x2 = 181.5625

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = 181.5625

Calculate the square root of the right side: 13.474512978

Break this problem into two subproblems by setting 
(x + 1.25) equal to 13.474512978 and -13.474512978.

Subproblem 1

x + 1.25 = 13.474512978 Simplifying x + 1.25 = 13.474512978 Reorder the terms: 1.25 + x = 13.474512978 Solving 1.25 + x = 13.474512978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 13.474512978 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 13.474512978 + -1.25 x = 13.474512978 + -1.25 Combine like terms: 13.474512978 + -1.25 = 12.224512978 x = 12.224512978 Simplifying x = 12.224512978

Subproblem 2

x + 1.25 = -13.474512978 Simplifying x + 1.25 = -13.474512978 Reorder the terms: 1.25 + x = -13.474512978 Solving 1.25 + x = -13.474512978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -13.474512978 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -13.474512978 + -1.25 x = -13.474512978 + -1.25 Combine like terms: -13.474512978 + -1.25 = -14.724512978 x = -14.724512978 Simplifying x = -14.724512978

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.224512978, -14.724512978}

See similar equations:

| 5(w-3)=3w-31 | | x^2-5+1=-4 | | -55-(-75)= | | 4b-7=5+2b | | (x+2)=-7 | | 2-(4x^2+3x-7)= | | -9y-39=-6(y+9) | | x^2+x^2+4x+4=4x^2 | | n^2+6n-9= | | -6*(-5)*(-6)*(2)= | | 16c-4-3c+9=14 | | 14x-271=4x-11 | | 16x^2+16x+4= | | 2(u+2)=5u+31 | | X^2+8x-47=6 | | 5q-4=4 | | -3(-8+w)+2w=30 | | -3(2-m+n)= | | 0.85+(-2.4)+4.5= | | 9x+y=3 | | 6-3x=-7x+6 | | -2w-45=59(w-2) | | 1-4/x-45/x^2=0 | | -19-2x=5-2x | | 9x-y=3 | | 6-3x=-7+6 | | 3(5a-b)-8(2b-8a)= | | 3-2(x+1)=x+17 | | z/7+7=12 | | -4x(5x-1)=6(-2x-6) | | -9y+9=-45 | | 3x-7x=1 |

Equations solver categories