x^2-10x-2=4

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


Simplifying
x2 + -10x + -2 = 4

Reorder the terms:
-2 + -10x + x2 = 4

Solving
-2 + -10x + x2 = 4

Solving for variable 'x'.

Reorder the terms:
-2 + -4 + -10x + x2 = 4 + -4

Combine like terms: -2 + -4 = -6
-6 + -10x + x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-6 + -10x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -10x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -10x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -10x + x2 = 0 + 6
-10x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-10x + x2 = 6

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 = 6 + 25

Reorder the terms:
25 + -10x + x2 = 6 + 25

Combine like terms: 6 + 25 = 31
25 + -10x + x2 = 31

Factor a perfect square on the left side:
(x + -5)(x + -5) = 31

Calculate the square root of the right side: 5.567764363

Break this problem into two subproblems by setting 
(x + -5) equal to 5.567764363 and -5.567764363.

Subproblem 1

x + -5 = 5.567764363 Simplifying x + -5 = 5.567764363 Reorder the terms: -5 + x = 5.567764363 Solving -5 + x = 5.567764363 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 = 5.567764363 + 5 Combine like terms: -5 + 5 = 0 0 + x = 5.567764363 + 5 x = 5.567764363 + 5 Combine like terms: 5.567764363 + 5 = 10.567764363 x = 10.567764363 Simplifying x = 10.567764363

Subproblem 2

x + -5 = -5.567764363 Simplifying x + -5 = -5.567764363 Reorder the terms: -5 + x = -5.567764363 Solving -5 + x = -5.567764363 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 = -5.567764363 + 5 Combine like terms: -5 + 5 = 0 0 + x = -5.567764363 + 5 x = -5.567764363 + 5 Combine like terms: -5.567764363 + 5 = -0.567764363 x = -0.567764363 Simplifying x = -0.567764363

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.567764363, -0.567764363}

See similar equations:

| 0=4x+32 | | 8x+18y=100 | | 5n-8=-38 | | 3(X+-1)=X+-19 | | 8(x+y)-3xy=2y^2+x^2 | | ln(4)/ln(18) | | 2(5c+1)-24=7c+5 | | 1/x=cos(x) | | 40-16=4(x-6) | | 7-1/3X3/2 | | (x+5)(x+3)=(x-1)(x+7)+10 | | -2(y+1)=6 | | A/8-3=9 | | -1.6x-3=-1.4x+1 | | 63-2x=x | | 8x+17=2x+5 | | (3x+7)-(2x+5)=3 | | f(x)=1/2x^2-4 | | x^2-2x^3-11x^2+12x=0 | | 7(x+12)=0 | | x^2-2x^3-11x+12=0 | | (5x-4)/(x-1) | | x^2-y^2+6x+7=0 | | 3(2x-2)+10=8 | | 3x=29-x | | Z^3+6z^2+12z+8-3i=o | | 1/8(x+35)=7 | | (1/4)^x+3=64 | | -1/8(x+35)=-7 | | 1/2x+20=60 | | 3ax+4y*5=0 | | 13x+7y=17 |

Equations solver categories