x^2-4x-10=4

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


Simplifying
x2 + -4x + -10 = 4

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

Solving
-10 + -4x + x2 = 4

Solving for variable 'x'.

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

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

Combine like terms: 4 + -4 = 0
-14 + -4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '14' to each side of the equation.
-14 + -4x + 14 + x2 = 0 + 14

Reorder the terms:
-14 + 14 + -4x + x2 = 0 + 14

Combine like terms: -14 + 14 = 0
0 + -4x + x2 = 0 + 14
-4x + x2 = 0 + 14

Combine like terms: 0 + 14 = 14
-4x + x2 = 14

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 = 14 + 4

Reorder the terms:
4 + -4x + x2 = 14 + 4

Combine like terms: 14 + 4 = 18
4 + -4x + x2 = 18

Factor a perfect square on the left side:
(x + -2)(x + -2) = 18

Calculate the square root of the right side: 4.242640687

Break this problem into two subproblems by setting 
(x + -2) equal to 4.242640687 and -4.242640687.

Subproblem 1

x + -2 = 4.242640687 Simplifying x + -2 = 4.242640687 Reorder the terms: -2 + x = 4.242640687 Solving -2 + x = 4.242640687 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 = 4.242640687 + 2 Combine like terms: -2 + 2 = 0 0 + x = 4.242640687 + 2 x = 4.242640687 + 2 Combine like terms: 4.242640687 + 2 = 6.242640687 x = 6.242640687 Simplifying x = 6.242640687

Subproblem 2

x + -2 = -4.242640687 Simplifying x + -2 = -4.242640687 Reorder the terms: -2 + x = -4.242640687 Solving -2 + x = -4.242640687 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 = -4.242640687 + 2 Combine like terms: -2 + 2 = 0 0 + x = -4.242640687 + 2 x = -4.242640687 + 2 Combine like terms: -4.242640687 + 2 = -2.242640687 x = -2.242640687 Simplifying x = -2.242640687

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.242640687, -2.242640687}

See similar equations:

| 4z+1=7z-5 | | 36=4(x+9) | | 4x+24+36y= | | 0.4x-5=0.05x+2 | | .75x-5=.58 | | 3w-(w-5)(w-3)=2w+1 | | 0.4x-4=0.6x+1 | | 5(x+9)-4=61 | | 7+13(x+1)=3x | | 2(3c-5)=4c-12 | | t^2-12t+36=4 | | (3+x)(2+x)=0 | | 2x+6y+4+2x=4x+10y | | 77r^2+45r-8=0 | | 3n^2-11n-70=0 | | 5x+45+35y= | | xsquared=160 | | 12(x-3)+3(x+1)-2(x-5)-4(x-2)=36 | | 27y=x^3 | | log(2x+1)=1-logx | | 5r^2+8s+16r^2= | | 45+20+0.75x=45+0.85x | | 20x-4=5x-6 | | X-72+3x=180 | | -3x+11=5 | | 0.2(x+80)+1.4x=80 | | -2+2z= | | 17=1-2r | | 6(2-x)+4=3x+3 | | 0.79x+32=1.19x | | -x+4=2-x | | 0.79x+32=1.19 |

Equations solver categories