3X^2-X^2-1X=-1

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Solution for 3X^2-X^2-1X=-1 equation:


Simplifying
3X2 + -1X2 + -1X = -1

Reorder the terms:
-1X + 3X2 + -1X2 = -1

Combine like terms: 3X2 + -1X2 = 2X2
-1X + 2X2 = -1

Solving
-1X + 2X2 = -1

Solving for variable 'X'.

Reorder the terms:
1 + -1X + 2X2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + -1X + 2X2 = 0

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

Divide each side by '2'.
0.5 + -0.5X + X2 = 0

Move the constant term to the right:

Add '-0.5' to each side of the equation.
0.5 + -0.5X + -0.5 + X2 = 0 + -0.5

Reorder the terms:
0.5 + -0.5 + -0.5X + X2 = 0 + -0.5

Combine like terms: 0.5 + -0.5 = 0.0
0.0 + -0.5X + X2 = 0 + -0.5
-0.5X + X2 = 0 + -0.5

Combine like terms: 0 + -0.5 = -0.5
-0.5X + X2 = -0.5

The X term is -0.5X.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5X + 0.0625 + X2 = -0.5 + 0.0625

Reorder the terms:
0.0625 + -0.5X + X2 = -0.5 + 0.0625

Combine like terms: -0.5 + 0.0625 = -0.4375
0.0625 + -0.5X + X2 = -0.4375

Factor a perfect square on the left side:
(X + -0.25)(X + -0.25) = -0.4375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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