2x^2+40x=5985

Simple and best practice solution for 2x^2+40x=5985 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+40x=5985 equation:


Simplifying
2x2 + 40x = 5985

Reorder the terms:
40x + 2x2 = 5985

Solving
40x + 2x2 = 5985

Solving for variable 'x'.

Reorder the terms:
-5985 + 40x + 2x2 = 5985 + -5985

Combine like terms: 5985 + -5985 = 0
-5985 + 40x + 2x2 = 0

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

Divide each side by '2'.
-2992.5 + 20x + x2 = 0

Move the constant term to the right:

Add '2992.5' to each side of the equation.
-2992.5 + 20x + 2992.5 + x2 = 0 + 2992.5

Reorder the terms:
-2992.5 + 2992.5 + 20x + x2 = 0 + 2992.5

Combine like terms: -2992.5 + 2992.5 = 0.0
0.0 + 20x + x2 = 0 + 2992.5
20x + x2 = 0 + 2992.5

Combine like terms: 0 + 2992.5 = 2992.5
20x + x2 = 2992.5

The x term is 20x.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20x + 100 + x2 = 2992.5 + 100

Reorder the terms:
100 + 20x + x2 = 2992.5 + 100

Combine like terms: 2992.5 + 100 = 3092.5
100 + 20x + x2 = 3092.5

Factor a perfect square on the left side:
(x + 10)(x + 10) = 3092.5

Calculate the square root of the right side: 55.610250854

Break this problem into two subproblems by setting 
(x + 10) equal to 55.610250854 and -55.610250854.

Subproblem 1

x + 10 = 55.610250854 Simplifying x + 10 = 55.610250854 Reorder the terms: 10 + x = 55.610250854 Solving 10 + x = 55.610250854 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 55.610250854 + -10 Combine like terms: 10 + -10 = 0 0 + x = 55.610250854 + -10 x = 55.610250854 + -10 Combine like terms: 55.610250854 + -10 = 45.610250854 x = 45.610250854 Simplifying x = 45.610250854

Subproblem 2

x + 10 = -55.610250854 Simplifying x + 10 = -55.610250854 Reorder the terms: 10 + x = -55.610250854 Solving 10 + x = -55.610250854 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -55.610250854 + -10 Combine like terms: 10 + -10 = 0 0 + x = -55.610250854 + -10 x = -55.610250854 + -10 Combine like terms: -55.610250854 + -10 = -65.610250854 x = -65.610250854 Simplifying x = -65.610250854

Solution

The solution to the problem is based on the solutions from the subproblems. x = {45.610250854, -65.610250854}

See similar equations:

| 271=108-x | | 15t^2+150t-315=0 | | 10w-99=189 | | 2x+7-3x+4=8x | | 2x+34+2x+29+2x+32=23 | | 13y-10y-13=40.75 | | 6y-6y= | | 21=5x+1 | | 5x=7(x+2) | | 3999+45a=4499+40a | | 24-7x=-6x-6(x+1) | | 4.3x-2.1x=1.9+3.3x | | 8x=186 | | 6c+6=20-4c | | 16+4=-2x-8x | | 3*[n+2*(3n+2)]=138 | | 7(-10-5x)=245 | | 6y-(3-2y)=3(7+2y) | | 8b+2=8b-9 | | Y=2.8+3.5x | | 4x(x+11)=24 | | (15x+7)-12=44 | | 8-3x=-3x+7 | | -2(-4x-8)=96 | | -5x=6/7 | | 14=8(x-1) | | 3ax+6b=8cx+d | | 6(-1+2x)=138 | | 3x(x+4)=300 | | 9x=51 | | 3x+2+4x-5= | | N+(17)=-1 |

Equations solver categories