8x^2+7=x

Simple and best practice solution for 8x^2+7=x 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 8x^2+7=x equation:


Simplifying
8x2 + 7 = x

Reorder the terms:
7 + 8x2 = x

Solving
7 + 8x2 = x

Solving for variable 'x'.

Reorder the terms:
7 + -1x + 8x2 = x + -1x

Combine like terms: x + -1x = 0
7 + -1x + 8x2 = 0

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

Divide each side by '8'.
0.875 + -0.125x + x2 = 0

Move the constant term to the right:

Add '-0.875' to each side of the equation.
0.875 + -0.125x + -0.875 + x2 = 0 + -0.875

Reorder the terms:
0.875 + -0.875 + -0.125x + x2 = 0 + -0.875

Combine like terms: 0.875 + -0.875 = 0.000
0.000 + -0.125x + x2 = 0 + -0.875
-0.125x + x2 = 0 + -0.875

Combine like terms: 0 + -0.875 = -0.875
-0.125x + x2 = -0.875

The x term is -0.125x.  Take half its coefficient (-0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
-0.125x + 0.00390625 + x2 = -0.875 + 0.00390625

Reorder the terms:
0.00390625 + -0.125x + x2 = -0.875 + 0.00390625

Combine like terms: -0.875 + 0.00390625 = -0.87109375
0.00390625 + -0.125x + x2 = -0.87109375

Factor a perfect square on the left side:
(x + -0.0625)(x + -0.0625) = -0.87109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 112+mfhg=180 | | -10m-15=79 | | -x^2-7=0 | | 64+mvuw=180 | | 16x+21=15x+18 | | 5(2+-3)=30 | | 116+mfdg=180 | | -16t^2-1600=0 | | 122+mdfe=180 | | -0.01(1125+-0.25b)+11.5=0.0025b+0.25 | | 122+mdfe=90 | | 4(7c+1)-10=26c+4 | | 24x=-192 | | 4(2b-1)-9=11 | | 55+mrst=180 | | -9(-8)/-7 | | 2.1p-3.9=11.85 | | 9m-19=-3m+1 | | 72+mvxy=180 | | -6(-5)/-1 | | -0.01a+11.5=0.0025b+0.25 | | 2/7×5/8= | | 3000=p+p(6)(5) | | A=120+4x | | 3/7×5/8= | | 9x(x+3)-6=23x-5 | | 64+mfdg=180 | | 0.01a=0.0025b-11.25 | | x+56x=56 | | 64+mfdg=90 | | (3a-b)-(6a+6b)= | | -12+13x=-233 |

Equations solver categories