x^2-9x+36=0

Simple and best practice solution for x^2-9x+36=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^2-9x+36=0 equation:


Simplifying
x2 + -9x + 36 = 0

Reorder the terms:
36 + -9x + x2 = 0

Solving
36 + -9x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-36' to each side of the equation.
36 + -9x + -36 + x2 = 0 + -36

Reorder the terms:
36 + -36 + -9x + x2 = 0 + -36

Combine like terms: 36 + -36 = 0
0 + -9x + x2 = 0 + -36
-9x + x2 = 0 + -36

Combine like terms: 0 + -36 = -36
-9x + x2 = -36

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 = -36 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -36 + 20.25

Combine like terms: -36 + 20.25 = -15.75
20.25 + -9x + x2 = -15.75

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = -15.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 5(x-6)=3x-14 | | 35x^2+42x+12=0 | | 4x^2=2x-5 | | 6z-2+2z+16=90 | | 6z-2=2z+16 | | 2z+16=6z-2 | | 239-3x=42x+19 | | (10x+5)(x-9)=0 | | 83-4x=41x+23 | | 123-5x=2x+18 | | (5-y)+(6-7)-(5-y)=0 | | x(4)=-6 | | t^2+17=-8t | | 71-7x=2x+20 | | 7-6x=139-37x | | 2x+3x-12x= | | 4x+8=-80-7x | | -12-4x=13-4x | | 63-2x=2x+19 | | 8x-6=7x+3 | | -31-2x=2x+19 | | q-(5-q)3=-7 | | 6x+34=15x-38 | | 2x+32=11x-58 | | 18x^3-6x^2+8x= | | 16x^2-9y^2= | | 2(x-5)=11 | | 2(x-5)=-11 | | 5*8+9-6*5=10 | | -1(6-3x)=-3 | | -5x-2(6-3x)=13 | | 8x-102=3x-7 |

Equations solver categories