x^2+5x-10=

Simple and best practice solution for x^2+5x-10= 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-10= equation:


Simplifying
x2 + 5x + -10 = 0

Reorder the terms:
-10 + 5x + x2 = 0

Solving
-10 + 5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 5x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + 5x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 5x + x2 = 0 + 10
5x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
5x + x2 = 10

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 = 10 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 10 + 6.25

Combine like terms: 10 + 6.25 = 16.25
6.25 + 5x + x2 = 16.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 16.25

Calculate the square root of the right side: 4.031128874

Break this problem into two subproblems by setting 
(x + 2.5) equal to 4.031128874 and -4.031128874.

Subproblem 1

x + 2.5 = 4.031128874 Simplifying x + 2.5 = 4.031128874 Reorder the terms: 2.5 + x = 4.031128874 Solving 2.5 + x = 4.031128874 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 = 4.031128874 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 4.031128874 + -2.5 x = 4.031128874 + -2.5 Combine like terms: 4.031128874 + -2.5 = 1.531128874 x = 1.531128874 Simplifying x = 1.531128874

Subproblem 2

x + 2.5 = -4.031128874 Simplifying x + 2.5 = -4.031128874 Reorder the terms: 2.5 + x = -4.031128874 Solving 2.5 + x = -4.031128874 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 = -4.031128874 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -4.031128874 + -2.5 x = -4.031128874 + -2.5 Combine like terms: -4.031128874 + -2.5 = -6.531128874 x = -6.531128874 Simplifying x = -6.531128874

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.531128874, -6.531128874}

See similar equations:

| 8x^2z^2-4x^2-24xy^2+36y^2=0 | | 26x-20+4x=13x+11+20 | | -8=y/4 | | 3(2-x)=5x-2 | | m/9=2 | | 6x+1+2x=12x+3-2x-19 | | 12x-8=9x+19 | | 5c-10=45 | | 2.1x+42.4=16.6-10.8x | | 3x+5/2=5x+2/3 | | 86=2x-12 | | 3p^2+2n+2.5=0 | | 512=25f-13 | | (8x-9)(7x+6)=0 | | 6p-13=347 | | 4x-9=6x-7 | | 150=5a+35 | | 120=5y | | 15x+25=100 | | (3x+8)(7x+4)= | | 3x+16=40 | | x-44=123 | | 90d-am+34a-6d+901ad=6788ad | | x+21=83 | | (3x+2)=64 | | 7x+28x-2=7(5x+9) | | 120m-34a+23m-34a=67m | | -5(11-3x)=-6x-4 | | 2x^2-9b=-12 | | 45e-23m+5m=9e | | 2y+8+5x=29 | | 4x^2-7x-9=0 |

Equations solver categories