-x^2+12x-64=0

Simple and best practice solution for -x^2+12x-64=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+12x-64=0 equation:


Simplifying
-1x2 + 12x + -64 = 0

Reorder the terms:
-64 + 12x + -1x2 = 0

Solving
-64 + 12x + -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'.
64 + -12x + x2 = 0

Move the constant term to the right:

Add '-64' to each side of the equation.
64 + -12x + -64 + x2 = 0 + -64

Reorder the terms:
64 + -64 + -12x + x2 = 0 + -64

Combine like terms: 64 + -64 = 0
0 + -12x + x2 = 0 + -64
-12x + x2 = 0 + -64

Combine like terms: 0 + -64 = -64
-12x + x2 = -64

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = -64 + 36

Reorder the terms:
36 + -12x + x2 = -64 + 36

Combine like terms: -64 + 36 = -28
36 + -12x + x2 = -28

Factor a perfect square on the left side:
(x + -6)(x + -6) = -28

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 1=3y+11y | | 17/6x=119 | | 4x^2+11x-300=0 | | 2(3x+1-2x)=20-4y | | 6x+3=4+x | | 0.2x+0.3y=0.2 | | z^2-25=4 | | 23x+5y=3 | | f(x)=x+0 | | (1/2)(16-8y)=x | | 0.3x-12=-0.9x+72 | | 5x-13=21+3x | | -8b+14b+-5b+-16=-6 | | 11z^2+99=0 | | 2(w-7)=-14 | | 3y-33x=12 | | 4.15+29.35=7.29x+189.21 | | 3t-4=1.5-.33t | | 2+3.5z=.33z+2 | | -3(y+2)-20=-5 | | 1/5(3-2x)=2x-12 | | [-14+(-5)]+[-18+17]= | | .6-.4x=2x-12 | | 3x^4-4x^3-8x^2+16x-2=(Ax^2+Bx+C)(x^2-3)+Dx+E | | 24=-4/3v | | .5t+1.25-t=2.5t-1 | | x^2+36=2x^2+16x+31 | | 5/12x=20 | | 10=5a-(8+2a) | | 3/7x=30 | | 2l+2w-10=400 | | 42-2(7-3x)+3x=5-8x |

Equations solver categories