-2x^2=-7x+12

Simple and best practice solution for -2x^2=-7x+12 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=-7x+12 equation:


Simplifying
-2x2 = -7x + 12

Reorder the terms:
-2x2 = 12 + -7x

Solving
-2x2 = 12 + -7x

Solving for variable 'x'.

Reorder the terms:
-12 + 7x + -2x2 = 12 + -7x + -12 + 7x

Reorder the terms:
-12 + 7x + -2x2 = 12 + -12 + -7x + 7x

Combine like terms: 12 + -12 = 0
-12 + 7x + -2x2 = 0 + -7x + 7x
-12 + 7x + -2x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-12 + 7x + -2x2 = 0

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

Divide each side by '-2'.
6 + -3.5x + x2 = 0

Move the constant term to the right:

Add '-6' to each side of the equation.
6 + -3.5x + -6 + x2 = 0 + -6

Reorder the terms:
6 + -6 + -3.5x + x2 = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -3.5x + x2 = 0 + -6
-3.5x + x2 = 0 + -6

Combine like terms: 0 + -6 = -6
-3.5x + x2 = -6

The x term is -3.5x.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5x + 3.0625 + x2 = -6 + 3.0625

Reorder the terms:
3.0625 + -3.5x + x2 = -6 + 3.0625

Combine like terms: -6 + 3.0625 = -2.9375
3.0625 + -3.5x + x2 = -2.9375

Factor a perfect square on the left side:
(x + -1.75)(x + -1.75) = -2.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 15x=6z | | 4[9+3t]-12=-16 | | 8(4+x)=56 | | (-11x-8)/6=-27 | | -7a=-35 | | 5(4t+1)-14=t-(t+8) | | p^2-15p-54=0 | | 0.4x-0.2(40+x)=0.3(50) | | 6x-9=x-75 | | 3x/2+4x | | p^2+-3p-54=0 | | 9x^2-16=8x^2-6x | | m-16=-35 | | 7/5(d+6)=2/5-d | | 13-7b=4b-9 | | x-(x*.34)=1353412 | | 3/8w+3/2=7/2+5/8w | | 0.17x+0.06(x-2)=0.01(4x-2) | | 54.8-1/5d=60.1 | | X^2+7x-8=9 | | 0.17x+0.06(x-2)=0.01 | | 2(x-6)=x+2 | | 3x-3=-3x+(-3) | | x^2*sin(23)=y^2+12y-sin(40) | | 87/-3x | | 7/8x-3=-15/16x+2 | | 3(x-3)=x+15 | | 2(8x-4)=20x | | 10/3/(-2/15) | | 2x-4+x=23 | | 51/2x-4/5=-9 | | 8[2w-6]+4[-1-5w]=0 |

Equations solver categories