x^2-4x-10=0

Simple and best practice solution for x^2-4x-10=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^2-4x-10=0 equation:


Simplifying
x2 + -4x + -10 = 0

Reorder the terms:
-10 + -4x + x2 = 0

Solving
-10 + -4x + 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 + -4x + 10 + x2 = 0 + 10

Reorder the terms:
-10 + 10 + -4x + x2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -4x + x2 = 0 + 10
-4x + x2 = 0 + 10

Combine like terms: 0 + 10 = 10
-4x + x2 = 10

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = 10 + 4

Reorder the terms:
4 + -4x + x2 = 10 + 4

Combine like terms: 10 + 4 = 14
4 + -4x + x2 = 14

Factor a perfect square on the left side:
(x + -2)(x + -2) = 14

Calculate the square root of the right side: 3.741657387

Break this problem into two subproblems by setting 
(x + -2) equal to 3.741657387 and -3.741657387.

Subproblem 1

x + -2 = 3.741657387 Simplifying x + -2 = 3.741657387 Reorder the terms: -2 + x = 3.741657387 Solving -2 + x = 3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 3.741657387 + 2 Combine like terms: -2 + 2 = 0 0 + x = 3.741657387 + 2 x = 3.741657387 + 2 Combine like terms: 3.741657387 + 2 = 5.741657387 x = 5.741657387 Simplifying x = 5.741657387

Subproblem 2

x + -2 = -3.741657387 Simplifying x + -2 = -3.741657387 Reorder the terms: -2 + x = -3.741657387 Solving -2 + x = -3.741657387 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -3.741657387 + 2 Combine like terms: -2 + 2 = 0 0 + x = -3.741657387 + 2 x = -3.741657387 + 2 Combine like terms: -3.741657387 + 2 = -1.741657387 x = -1.741657387 Simplifying x = -1.741657387

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.741657387, -1.741657387}

See similar equations:

| 5x+2x-9=40 | | x-4x-10=0 | | -30=-.71v | | 13-4d+10d=28 | | -7x+9=0 | | 2x+5=x^2 | | 5x+5y=13 | | 3x^2-8x-19=x^2+1 | | 10x-x+8-5x=24 | | 8x+3=2(4x-5) | | 16x+9=8x+32 | | 0.25z=1 | | 11+(-16)-(5)-(3)=x | | 0.25z=6 | | 4(-1)+5y=-4 | | 10x-23=6x+5 | | 10x+23=6x+5 | | 79+79+x=240 | | 3+(-15)-(-8)+(-2)+(10)-(-10)=x | | 6t-3=5(2t+18) | | 3x+4x=42 | | 3+(-15)-(-8)+(-2)+(10)-(-10)= | | 7y=-42 | | 5x-13=37 | | 0.8z=120 | | 0.8z=40 | | 14x=9x+5 | | 4x+11-5=65+2x+8-4 | | 10n-95=6n-11 | | X-68=94 | | 5-10x=45-45x | | 171-2x=34x+15 |

Equations solver categories