2x^2-12x=-61

Simple and best practice solution for 2x^2-12x=-61 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 2x^2-12x=-61 equation:


Simplifying
2x2 + -12x = -61

Reorder the terms:
-12x + 2x2 = -61

Solving
-12x + 2x2 = -61

Solving for variable 'x'.

Reorder the terms:
61 + -12x + 2x2 = -61 + 61

Combine like terms: -61 + 61 = 0
61 + -12x + 2x2 = 0

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

Divide each side by '2'.
30.5 + -6x + x2 = 0

Move the constant term to the right:

Add '-30.5' to each side of the equation.
30.5 + -6x + -30.5 + x2 = 0 + -30.5

Reorder the terms:
30.5 + -30.5 + -6x + x2 = 0 + -30.5

Combine like terms: 30.5 + -30.5 = 0.0
0.0 + -6x + x2 = 0 + -30.5
-6x + x2 = 0 + -30.5

Combine like terms: 0 + -30.5 = -30.5
-6x + x2 = -30.5

The x term is -6x.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6x + 9 + x2 = -30.5 + 9

Reorder the terms:
9 + -6x + x2 = -30.5 + 9

Combine like terms: -30.5 + 9 = -21.5
9 + -6x + x2 = -21.5

Factor a perfect square on the left side:
(x + -3)(x + -3) = -21.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 1/2x^2+3x=8 | | (4x^2-19x-5)=0 | | r/-3=12 | | 7.7x+3=6.7x | | 10x+15=4x+123 | | -9x^2-x=0 | | x-7.2=-6.9 | | (7x+2)(4x^2-19x-5)=0 | | -1*x^2+7=2 | | t+5=-26+6 | | 108-7x=29x+16 | | 14*x^2-8=2 | | -2-3=4x+18-3x | | x^2-7=6 | | -7*x^2+8=6 | | 2(x+1)=3(-3x) | | -1*x^2+8=5 | | 2x+32=10x-410 | | 3(-4x+5)+8=-2(2x+6)-10 | | x^2+8-45=0 | | -6.9y=-55.2 | | 6(x-9)=5(2+x) | | -5x+3(2x-4)=7x-2(5x-4)+12 | | 7x=4x+27 | | 2x-5/3=x | | 223600-17740x=1969900 | | 12x+9=10x+3 | | 9p^2+73n+70=0 | | 3x+6=-27 | | 9-2x(x+4)-10(25-x+4)=5-3x-4(x+1) | | 100-4x=41x+15 | | 20=-4t |

Equations solver categories