x^2+10*x-25=0

Simple and best practice solution for x^2+10*x-25=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+10*x-25=0 equation:


Simplifying
x2 + 10x + -25 = 0

Reorder the terms:
-25 + 10x + x2 = 0

Solving
-25 + 10x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '25' to each side of the equation.
-25 + 10x + 25 + x2 = 0 + 25

Reorder the terms:
-25 + 25 + 10x + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + 10x + x2 = 0 + 25
10x + x2 = 0 + 25

Combine like terms: 0 + 25 = 25
10x + x2 = 25

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 25 + 25

Reorder the terms:
25 + 10x + x2 = 25 + 25

Combine like terms: 25 + 25 = 50
25 + 10x + x2 = 50

Factor a perfect square on the left side:
(x + 5)(x + 5) = 50

Calculate the square root of the right side: 7.071067812

Break this problem into two subproblems by setting 
(x + 5) equal to 7.071067812 and -7.071067812.

Subproblem 1

x + 5 = 7.071067812 Simplifying x + 5 = 7.071067812 Reorder the terms: 5 + x = 7.071067812 Solving 5 + x = 7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 7.071067812 + -5 Combine like terms: 5 + -5 = 0 0 + x = 7.071067812 + -5 x = 7.071067812 + -5 Combine like terms: 7.071067812 + -5 = 2.071067812 x = 2.071067812 Simplifying x = 2.071067812

Subproblem 2

x + 5 = -7.071067812 Simplifying x + 5 = -7.071067812 Reorder the terms: 5 + x = -7.071067812 Solving 5 + x = -7.071067812 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -7.071067812 + -5 Combine like terms: 5 + -5 = 0 0 + x = -7.071067812 + -5 x = -7.071067812 + -5 Combine like terms: -7.071067812 + -5 = -12.071067812 x = -12.071067812 Simplifying x = -12.071067812

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.071067812, -12.071067812}

See similar equations:

| 7x^2+36x=-5 | | 4x^2-10x-6=0 | | x^2+8=9 | | y=3(x-3) | | 5a+11+3a-7=-4 | | 4x+12=100 | | x^2-7x+1=9 | | 2x^2+15x+21=0 | | 14=2(2)+2x+4x | | 10=1x+3x+1x | | 14=2x+2x+4x | | 8x+4+5x+9=12x+4 | | 11+[8+(-4)]= | | 5a+4b=-28 | | 81w^2-100p^2= | | 3*-1+4= | | (7x+5y)+(-8x-9y)= | | 9y^4(4y^2-8y+6)= | | -13x=221 | | y^2-17y+72=0 | | y^2-15y+56=0 | | -3(z-4)= | | -3z-2z= | | x-7.9=-5.5 | | 9x-5=76 | | 8x+24=48 | | 6x+12=60 | | 0=-8y+21 | | -2x^2+6x+9=0 | | a^4b+a^2b^3= | | 0.05x-0.6=5.3 | | 12=2x+2x+2x |

Equations solver categories