x^2-12x=-56

Simple and best practice solution for x^2-12x=-56 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=-56 equation:


Simplifying
x2 + -12x = -56

Reorder the terms:
-12x + x2 = -56

Solving
-12x + x2 = -56

Solving for variable 'x'.

Reorder the terms:
56 + -12x + x2 = -56 + 56

Combine like terms: -56 + 56 = 0
56 + -12x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-56' to each side of the equation.
56 + -12x + -56 + x2 = 0 + -56

Reorder the terms:
56 + -56 + -12x + x2 = 0 + -56

Combine like terms: 56 + -56 = 0
0 + -12x + x2 = 0 + -56
-12x + x2 = 0 + -56

Combine like terms: 0 + -56 = -56
-12x + x2 = -56

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 = -56 + 36

Reorder the terms:
36 + -12x + x2 = -56 + 36

Combine like terms: -56 + 36 = -20
36 + -12x + x2 = -20

Factor a perfect square on the left side:
(x + -6)(x + -6) = -20

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 14-2(-4)+4= | | 4(5x+9)=6x+8 | | 34-6x=14 | | -24x^2-28x-4=0 | | -6n-12=2+n | | 0.8x+3y=2.4 | | 14-2(-4+4)= | | .2(g-2)=.6(g-6) | | 2(-1)=14x | | n+0.6=0.1+2n | | (2x-4)+(6x)=90 | | 6x-66=15-4x | | Y-2=7x | | (6x)+(3x-9)=90 | | 30+2k+3k=100 | | -4x+17+6x+17=-6 | | 0.79t=24+1.19t | | 5x(3x^2)=15x^3 | | 3n^3-7n+2=0 | | 5x(3x^2)= | | 0.03p+0.07(1200-p)=70 | | -7a-5=3-5a | | 9p+4q-7(9p-9q)= | | 0.2(2.1+6x)=1.3x | | 20-y=6 | | 10+2x=4x-4 | | 5+10+y=24 | | 7+8a+30=-13 | | 5x^2+6+1=0 | | 3(10x+y)=42 | | -3x+10=6-4x | | 4.8x+8y=152 |

Equations solver categories