5x-x^2-9=0

Simple and best practice solution for 5x-x^2-9=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 5x-x^2-9=0 equation:


Simplifying
5x + -1x2 + -9 = 0

Reorder the terms:
-9 + 5x + -1x2 = 0

Solving
-9 + 5x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
9 + -5x + x2 = 0

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -5x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + -5x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5x + x2 = 0 + -9
-5x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
-5x + x2 = -9

The x term is -5x.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5x + 6.25 + x2 = -9 + 6.25

Reorder the terms:
6.25 + -5x + x2 = -9 + 6.25

Combine like terms: -9 + 6.25 = -2.75
6.25 + -5x + x2 = -2.75

Factor a perfect square on the left side:
(x + -2.5)(x + -2.5) = -2.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x+1.5x=6 | | -5=a+7-3a | | 3(p-6)=6(p+4) | | 3x-16+5x+21-x=47 | | y=3/4-6 | | ln(x+2)+3=4 | | 3(-5-8x)=-31-8x | | X/200=100 | | c-2=3c*14 | | 17x11/5 | | x^2+8x+14=2 | | 7(9x+10)=63x-3 | | 4x-2(x-4)=-5+4x-1 | | h^2-8=3n+10 | | (x^7-x^2)(x^6+5)= | | 6+4c=34whatisc | | 3x-9=5+3y | | 7(11x+9)=77x-6 | | 5x+8=-37-10 | | 12=a+6-2a | | 300=4x+1800 | | 40-x/3=10 | | 00.6x+0.3x=7.2 | | 3(x-4)-2(x+1)=6 | | 10x+3=10x-7 | | 15(x-2)=-30 | | 2e^2x+7=4 | | X^2+15=2ix | | -3/2k-6=-15 | | 4y+x=-16 | | F-1(x)=x | | 5(x-3)-3=12 |

Equations solver categories