(x^2)-5x-5=0

Simple and best practice solution for (x^2)-5x-5=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)-5x-5=0 equation:


Simplifying
(x2) + -5x + -5 = 0
x2 + -5x + -5 = 0

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

Solving
-5 + -5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '5' to each side of the equation.
-5 + -5x + 5 + x2 = 0 + 5

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

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

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

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = 5 + 6.25

Reorder the terms:
6.25 + -5x + x2 = 5 + 6.25

Combine like terms: 5 + 6.25 = 11.25
6.25 + -5x + x2 = 11.25

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = 11.25

Calculate the square root of the right side: 3.354101966

Break this problem into two subproblems by setting 
(x + -2.5) equal to 3.354101966 and -3.354101966.

Subproblem 1

x + -2.5 = 3.354101966 Simplifying x + -2.5 = 3.354101966 Reorder the terms: -2.5 + x = 3.354101966 Solving -2.5 + x = 3.354101966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 3.354101966 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 3.354101966 + 2.5 x = 3.354101966 + 2.5 Combine like terms: 3.354101966 + 2.5 = 5.854101966 x = 5.854101966 Simplifying x = 5.854101966

Subproblem 2

x + -2.5 = -3.354101966 Simplifying x + -2.5 = -3.354101966 Reorder the terms: -2.5 + x = -3.354101966 Solving -2.5 + x = -3.354101966 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -3.354101966 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -3.354101966 + 2.5 x = -3.354101966 + 2.5 Combine like terms: -3.354101966 + 2.5 = -0.854101966 x = -0.854101966 Simplifying x = -0.854101966

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.854101966, -0.854101966}

See similar equations:

| x+5sqrt(x)+-3=0 | | 4x+6x-3=18+19 | | 6x-1+3-x=x+4 | | 40x+21=40x+21 | | 6x+7=10x+7 | | X+12.3=-4.1 | | 10x-3=-33 | | .04x+.05(15000-x)=690 | | 3y+5=5x+-35 | | X-7.3=-5.1 | | .05(15000-x)=690 | | 190+.25x=380 | | -2(2x-5y+4)= | | 5g+2(-5+5)=1-g | | 4(b+3)=26 | | 4x+13=3x+7 | | 3.1-x=-3.1 | | 25.728/5.22= | | n^2+6n+7n=-5 | | 5x^2+17x+4=0 | | f(x)=-2in(1-x) | | 7-(2n-8)=4-3n | | 4(6+w)=3(7+w) | | 2x-4(6x-7)=2x+28 | | .04x+.05(1500-x)=69 | | y=in(2-1) | | 5x^3+17x^2+4x-3470=0 | | cos^2+cosx-2=0 | | .15+.1m=.02-.25 | | 5(y-6)+7(y+4)=34 | | 12x^2=21x-9 | | -6x^6-18x^5+168x^4=0 |

Equations solver categories