x^2-9x-92=7

Simple and best practice solution for x^2-9x-92=7 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^2-9x-92=7 equation:


Simplifying
x2 + -9x + -92 = 7

Reorder the terms:
-92 + -9x + x2 = 7

Solving
-92 + -9x + x2 = 7

Solving for variable 'x'.

Reorder the terms:
-92 + -7 + -9x + x2 = 7 + -7

Combine like terms: -92 + -7 = -99
-99 + -9x + x2 = 7 + -7

Combine like terms: 7 + -7 = 0
-99 + -9x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '99' to each side of the equation.
-99 + -9x + 99 + x2 = 0 + 99

Reorder the terms:
-99 + 99 + -9x + x2 = 0 + 99

Combine like terms: -99 + 99 = 0
0 + -9x + x2 = 0 + 99
-9x + x2 = 0 + 99

Combine like terms: 0 + 99 = 99
-9x + x2 = 99

The x term is -9x.  Take half its coefficient (-4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
-9x + 20.25 + x2 = 99 + 20.25

Reorder the terms:
20.25 + -9x + x2 = 99 + 20.25

Combine like terms: 99 + 20.25 = 119.25
20.25 + -9x + x2 = 119.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = 119.25

Calculate the square root of the right side: 10.920164834

Break this problem into two subproblems by setting 
(x + -4.5) equal to 10.920164834 and -10.920164834.

Subproblem 1

x + -4.5 = 10.920164834 Simplifying x + -4.5 = 10.920164834 Reorder the terms: -4.5 + x = 10.920164834 Solving -4.5 + x = 10.920164834 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = 10.920164834 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 10.920164834 + 4.5 x = 10.920164834 + 4.5 Combine like terms: 10.920164834 + 4.5 = 15.420164834 x = 15.420164834 Simplifying x = 15.420164834

Subproblem 2

x + -4.5 = -10.920164834 Simplifying x + -4.5 = -10.920164834 Reorder the terms: -4.5 + x = -10.920164834 Solving -4.5 + x = -10.920164834 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.5' to each side of the equation. -4.5 + 4.5 + x = -10.920164834 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -10.920164834 + 4.5 x = -10.920164834 + 4.5 Combine like terms: -10.920164834 + 4.5 = -6.420164834 x = -6.420164834 Simplifying x = -6.420164834

Solution

The solution to the problem is based on the solutions from the subproblems. x = {15.420164834, -6.420164834}

See similar equations:

| 10.08=4(0.5x+2.5) | | x^2-6x+34=0 | | n+6=14+5 | | n^2-8n-9=0 | | 12-.33333333u=2 | | 12x+5xy+4x+5y^2=0 | | 4x+(-8y)+(-14x)+13y= | | x^2+20=4x | | =3x^2+14x+40 | | 8-3c=2c-8 | | 10y+7-4y=-5+6y+22 | | 2x^2+7x=4 | | -2b+9+(-b)+(-3)= | | .40n+6=10 | | x+5x+10=180 | | 5x-2=78 | | 12y^2+47y-4=0 | | x^2=-4x+5 | | 12+.33u=2 | | x^2=-7x-10 | | 12-.33=2 | | 522x+70=17x-9 | | 28=6x+2 | | 3x+8(x-7)=3(x-8) | | 2(3x)-5(3x+1)=58 | | 24=6x+2 | | 1.5t+6=-7 | | m^3+8n^3=0 | | 6(x+3)-(4X-7)= | | 6m+14=9m-4 | | 5x-3(1-2x)=4(2x-1) | | 7(x+1)=5(21)-3(x+2) |

Equations solver categories