x-2x^2=10.625

Simple and best practice solution for x-2x^2=10.625 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-2x^2=10.625 equation:


Simplifying
x + -2x2 = 10.625

Solving
x + -2x2 = 10.625

Solving for variable 'x'.

Reorder the terms:
-10.625 + x + -2x2 = 10.625 + -10.625

Combine like terms: 10.625 + -10.625 = 0.000
-10.625 + x + -2x2 = 0.000

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

Divide each side by '-2'.
5.3125 + -0.5x + x2 = 0.000

Move the constant term to the right:

Add '-5.3125' to each side of the equation.
5.3125 + -0.5x + -5.3125 + x2 = 0.000 + -5.3125

Reorder the terms:
5.3125 + -5.3125 + -0.5x + x2 = 0.000 + -5.3125

Combine like terms: 5.3125 + -5.3125 = 0.0000
0.0000 + -0.5x + x2 = 0.000 + -5.3125
-0.5x + x2 = 0.000 + -5.3125

Combine like terms: 0.000 + -5.3125 = -5.3125
-0.5x + x2 = -5.3125

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-0.5x + 0.25 + x2 = -5.3125 + 0.25

Reorder the terms:
0.25 + -0.5x + x2 = -5.3125 + 0.25

Combine like terms: -5.3125 + 0.25 = -5.0625
0.25 + -0.5x + x2 = -5.0625

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = -5.0625

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0.75h+2=0.50 | | 2p+3(p+1)=12-4p | | 6x+2=5-3x | | 9-3(x+3)=2(3-x)+2 | | 6r+22=2 | | 4(3-5x)=7 | | 8+(-5.5)= | | -3(x-6)=-6 | | 4w-5w+9=8.4 | | 5.3x-6.45=7.95-4.3x | | -12=3+h | | 3p-(-3)=12 | | x/2+4=5/2-6 | | 14+4w-20=6-2w | | 10=0.5(2+3) | | 3q-16=2q+12 | | 4y-8=8y+4 | | 3/4(8-4)=-2 | | -4=b/7 | | (20a^-6b7)/(5a^-9b^3) | | 3y+9=6 | | m/-4=12 | | 5x^2-4x-9= | | 2.5-3f=10-2.5f | | y^3=-17 | | -100=12t+-4 | | 7x-4=3(x-10) | | 28y=20 | | -10=-2(2x+5) | | 36/6*6+6-4 | | -2r-9=-3r-6 | | 8x+10=-118 |

Equations solver categories