-1=x^2+5x-5

Simple and best practice solution for -1=x^2+5x-5 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 -1=x^2+5x-5 equation:


Simplifying
-1 = x2 + 5x + -5

Reorder the terms:
-1 = -5 + 5x + x2

Solving
-1 = -5 + 5x + x2

Solving for variable 'x'.

Combine like terms: -1 + 5 = 4
4 + -5x + -1x2 = -5 + 5x + x2 + 5 + -5x + -1x2

Reorder the terms:
4 + -5x + -1x2 = -5 + 5 + 5x + -5x + x2 + -1x2

Combine like terms: -5 + 5 = 0
4 + -5x + -1x2 = 0 + 5x + -5x + x2 + -1x2
4 + -5x + -1x2 = 5x + -5x + x2 + -1x2

Combine like terms: 5x + -5x = 0
4 + -5x + -1x2 = 0 + x2 + -1x2
4 + -5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
4 + -5x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-4 + 5x + x2 = 0

Move the constant term to the right:

Add '4' to each side of the equation.
-4 + 5x + 4 + x2 = 0 + 4

Reorder the terms:
-4 + 4 + 5x + x2 = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 5x + x2 = 0 + 4
5x + x2 = 0 + 4

Combine like terms: 0 + 4 = 4
5x + x2 = 4

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 = 4 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 4 + 6.25

Combine like terms: 4 + 6.25 = 10.25
6.25 + 5x + x2 = 10.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 10.25

Calculate the square root of the right side: 3.201562119

Break this problem into two subproblems by setting 
(x + 2.5) equal to 3.201562119 and -3.201562119.

Subproblem 1

x + 2.5 = 3.201562119 Simplifying x + 2.5 = 3.201562119 Reorder the terms: 2.5 + x = 3.201562119 Solving 2.5 + x = 3.201562119 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 = 3.201562119 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 3.201562119 + -2.5 x = 3.201562119 + -2.5 Combine like terms: 3.201562119 + -2.5 = 0.701562119 x = 0.701562119 Simplifying x = 0.701562119

Subproblem 2

x + 2.5 = -3.201562119 Simplifying x + 2.5 = -3.201562119 Reorder the terms: 2.5 + x = -3.201562119 Solving 2.5 + x = -3.201562119 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 = -3.201562119 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -3.201562119 + -2.5 x = -3.201562119 + -2.5 Combine like terms: -3.201562119 + -2.5 = -5.701562119 x = -5.701562119 Simplifying x = -5.701562119

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.701562119, -5.701562119}

See similar equations:

| 7x+11=38 | | 7(1+2p)-3p=95 | | (x+8)=5x-7 | | (3-30)(3+30)= | | -x=5x-7 | | 15=a-5.8 | | 100+10x^2+y^2=C | | 2X-X=6+3 | | 9-900= | | -7(1-3k)+k=-161 | | f(-9)=5x-7 | | 90=1.5t+8 | | 5(x+7)-19= | | -6-6x=-x+34 | | (2x+10)+(x+10)=180 | | x^2+3a-90=0 | | x/318 | | y^2-5/3y=25/28 | | -7(7-2m)+3=-158 | | Log(9x-20)=2logx | | -15n+14=-13n-16 | | -7(-7v+4)=-175 | | X/5-10= | | 7x5/8 | | -7(a-6)=91 | | -3x+4=4x+25 | | 12/200 | | 45-15=3h | | -38+y=-56 | | X-5=-55 | | 15h+3=45 | | 5x+7-2x=8+4x-6 |

Equations solver categories