1x^2-9x-6=0

Simple and best practice solution for 1x^2-9x-6=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 1x^2-9x-6=0 equation:


Simplifying
1x2 + -9x + -6 = 0

Reorder the terms:
-6 + -9x + 1x2 = 0

Solving
-6 + -9x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -9x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -9x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -9x + x2 = 0 + 6
-9x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-9x + x2 = 6

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 = 6 + 20.25

Reorder the terms:
20.25 + -9x + x2 = 6 + 20.25

Combine like terms: 6 + 20.25 = 26.25
20.25 + -9x + x2 = 26.25

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = 26.25

Calculate the square root of the right side: 5.123475383

Break this problem into two subproblems by setting 
(x + -4.5) equal to 5.123475383 and -5.123475383.

Subproblem 1

x + -4.5 = 5.123475383 Simplifying x + -4.5 = 5.123475383 Reorder the terms: -4.5 + x = 5.123475383 Solving -4.5 + x = 5.123475383 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 = 5.123475383 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = 5.123475383 + 4.5 x = 5.123475383 + 4.5 Combine like terms: 5.123475383 + 4.5 = 9.623475383 x = 9.623475383 Simplifying x = 9.623475383

Subproblem 2

x + -4.5 = -5.123475383 Simplifying x + -4.5 = -5.123475383 Reorder the terms: -4.5 + x = -5.123475383 Solving -4.5 + x = -5.123475383 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 = -5.123475383 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + x = -5.123475383 + 4.5 x = -5.123475383 + 4.5 Combine like terms: -5.123475383 + 4.5 = -0.623475383 x = -0.623475383 Simplifying x = -0.623475383

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.623475383, -0.623475383}

See similar equations:

| (x^2+6x+5)-(x^2+4x-5)= | | 2y+4=6y | | 4y-4=6y-22 | | (6x)-(x+8)= | | -6=6/5b+5 | | 8(y+5)+y=3(y+3)+2 | | 25-5x-18-12x=0 | | y=1+5 | | 9x-19=2x+11 | | 6x-x=60+30 | | x^2-6x+153=0 | | 16a*2-14a+1a*2-3a= | | 25-5x-18-12x=10 | | x^2-6+153=0 | | 15x+6-(X+2)= | | 0.25(m+5)=-1.5 | | 12x=10x+60 | | 10y=-22 | | 1+6h=2+4h | | 14x-5=10x+7 | | 7y-14=21 | | =k^2+4k+4 | | -7(x+5)=35 | | 5w-4=6 | | 1+4/5c=7 | | 6=-3/5(n+8) | | 6s+2s-3s+-6= | | 5x=2(9-x) | | 8-3x-8+5x= | | -x/5+7=-16 | | 3p+6=14 | | 3x-15=7x+7 |

Equations solver categories