10x^2-x^2-4x-4=x^2

Solution for 10x^2-x^2-4x-4=x^2 equation:

Simplifying
10x2 + -1x2 + -4x + -4 = x2

Reorder the terms:
-4 + -4x + 10x2 + -1x2 = x2

Combine like terms: 10x2 + -1x2 = 9x2
-4 + -4x + 9x2 = x2

Solving
-4 + -4x + 9x2 = x2

Solving for variable 'x'.

Combine like terms: 9x2 + -1x2 = 8x2
-4 + -4x + 8x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-4 + -4x + 8x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-1 + -1x + 2x2) = 0

Factor a trinomial.
4((-1 + -2x)(1 + -1x)) = 0

Ignore the factor 4.
Subproblem 1
Set the factor '(-1 + -2x)' equal to zero and attempt to solve:

Simplifying
-1 + -2x = 0

Solving
-1 + -2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '1' to each side of the equation.
-1 + 1 + -2x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -2x = 0 + 1
-2x = 0 + 1

Combine like terms: 0 + 1 = 1
-2x = 1

Divide each side by '-2'.
x = -0.5

Simplifying
x = -0.5
Subproblem 2
Set the factor '(1 + -1x)' equal to zero and attempt to solve:

Simplifying
1 + -1x = 0

Solving
1 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + -1x = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1x = 0 + -1
-1x = 0 + -1

Combine like terms: 0 + -1 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1
Solution
x = {-0.5, 1}