x^2+15x-95.85=0

Simple and best practice solution for x^2+15x-95.85=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 x^2+15x-95.85=0 equation:


Simplifying
x2 + 15x + -95.85 = 0

Reorder the terms:
-95.85 + 15x + x2 = 0

Solving
-95.85 + 15x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '95.85' to each side of the equation.
-95.85 + 15x + 95.85 + x2 = 0 + 95.85

Reorder the terms:
-95.85 + 95.85 + 15x + x2 = 0 + 95.85

Combine like terms: -95.85 + 95.85 = 0.00
0.00 + 15x + x2 = 0 + 95.85
15x + x2 = 0 + 95.85

Combine like terms: 0 + 95.85 = 95.85
15x + x2 = 95.85

The x term is 15x.  Take half its coefficient (7.5).
Square it (56.25) and add it to both sides.

Add '56.25' to each side of the equation.
15x + 56.25 + x2 = 95.85 + 56.25

Reorder the terms:
56.25 + 15x + x2 = 95.85 + 56.25

Combine like terms: 95.85 + 56.25 = 152.1
56.25 + 15x + x2 = 152.1

Factor a perfect square on the left side:
(x + 7.5)(x + 7.5) = 152.1

Calculate the square root of the right side: 12.332882875

Break this problem into two subproblems by setting 
(x + 7.5) equal to 12.332882875 and -12.332882875.

Subproblem 1

x + 7.5 = 12.332882875 Simplifying x + 7.5 = 12.332882875 Reorder the terms: 7.5 + x = 12.332882875 Solving 7.5 + x = 12.332882875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + x = 12.332882875 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + x = 12.332882875 + -7.5 x = 12.332882875 + -7.5 Combine like terms: 12.332882875 + -7.5 = 4.832882875 x = 4.832882875 Simplifying x = 4.832882875

Subproblem 2

x + 7.5 = -12.332882875 Simplifying x + 7.5 = -12.332882875 Reorder the terms: 7.5 + x = -12.332882875 Solving 7.5 + x = -12.332882875 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.5' to each side of the equation. 7.5 + -7.5 + x = -12.332882875 + -7.5 Combine like terms: 7.5 + -7.5 = 0.0 0.0 + x = -12.332882875 + -7.5 x = -12.332882875 + -7.5 Combine like terms: -12.332882875 + -7.5 = -19.832882875 x = -19.832882875 Simplifying x = -19.832882875

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.832882875, -19.832882875}

See similar equations:

| 15+5=4x | | 28x=420 | | 8(x+7)=6(x+4) | | 12x-4=6x+8 | | -4x-20=24 | | =2(2w+w-1) | | 3x^2+-2x+-7=0 | | 5(2x+5)=65 | | 6x+9y=34 | | -5-15n=80 | | -4.6q-(-4+0.9q)=3.4-4.7q | | x^5+x^3+2x=2x^4+x^2+1 | | 12y=23 | | 2x-y+5y-1= | | p=6.9+0.6 | | -7n-4(-1-7n)=-12+13n | | 7x+21x-5=7(4x+7) | | 2x+6x-3=61 | | 2a(7+6)=52 | | 1.5=2.0+1.5(3p+1) | | 5(7x-5)=-60 | | 7a-3=3+8a | | 500+55=35 | | x^2+15x-2250=0 | | 2x+11=47 | | 27y=6y+8 | | 65/475=x | | 5x+1=5x-6 | | 6b+5(3+b)= | | 6y+8=27y | | -5x+12=-2x | | 14x+5-13x-16=4 |

Equations solver categories