x^2-9x+65=0

Simple and best practice solution for x^2-9x+65=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+65=0 equation:


Simplifying
x2 + -9x + 65 = 0

Reorder the terms:
65 + -9x + x2 = 0

Solving
65 + -9x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-65' to each side of the equation.
65 + -9x + -65 + x2 = 0 + -65

Reorder the terms:
65 + -65 + -9x + x2 = 0 + -65

Combine like terms: 65 + -65 = 0
0 + -9x + x2 = 0 + -65
-9x + x2 = 0 + -65

Combine like terms: 0 + -65 = -65
-9x + x2 = -65

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 = -65 + 20.25

Reorder the terms:
20.25 + -9x + x2 = -65 + 20.25

Combine like terms: -65 + 20.25 = -44.75
20.25 + -9x + x2 = -44.75

Factor a perfect square on the left side:
(x + -4.5)(x + -4.5) = -44.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -3x+22=-5 | | 7x-3=x-15 | | (5x-8)-(-4x-1)=11 | | -8y-5=-7y-7 | | W-12=8+3w | | -2(a+b)=-22 | | 2n+6=0.2n-3 | | 100a^2-65a-75=0 | | 8p+7=14+7p | | 5x+8=26+3 | | -70=-7(n+2)-7(-7n+8) | | -3x-19=-106 | | 4x-13=2x+19 | | 5x+21=7(x-13) | | -6(2x-4)=5(3x-6) | | 5y=1.2y | | y=4x^2+6x+1 | | 4x+1=-9+3x | | 15.9=r+27.3 | | 6.5+0.9= | | 5k=-15 | | x+9=9x-25 | | -10-(5x-10)=2+4x | | 3(4x+2)+7=6(2x-3) | | 5.4u+.1=3.1u+2.4 | | (2)(9)= | | -t+3t-5+7t=t+19 | | 3+11+90= | | 3x+8-2x=4x-4+x | | y+1.5y-.2=4.2(y-4.5) | | 8x+3+6x+8=13x | | -1.5+5.8= |

Equations solver categories