(-X*X)+5X-1=6

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Solution for (-X*X)+5X-1=6 equation:


Simplifying
(-1X * X) + 5X + -1 = 6

Multiply X * X
(-1X2) + 5X + -1 = 6

Reorder the terms:
-1 + 5X + (-1X2) = 6

Solving
-1 + 5X + (-1X2) = 6

Solving for variable 'X'.

Reorder the terms:
-1 + -6 + 5X + (-1X2) = 6 + -6

Combine like terms: -1 + -6 = -7
-7 + 5X + (-1X2) = 6 + -6

Combine like terms: 6 + -6 = 0
-7 + 5X + (-1X2) = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
7 + -5X + X2 = 0

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + -5X + -7 + X2 = 0 + -7

Reorder the terms:
7 + -7 + -5X + X2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -5X + X2 = 0 + -7
-5X + X2 = 0 + -7

Combine like terms: 0 + -7 = -7
-5X + X2 = -7

The X term is -5X.  Take half its coefficient (-2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
-5X + 6.25 + X2 = -7 + 6.25

Reorder the terms:
6.25 + -5X + X2 = -7 + 6.25

Combine like terms: -7 + 6.25 = -0.75
6.25 + -5X + X2 = -0.75

Factor a perfect square on the left side:
((X) + -2.5)((X) + -2.5) = -0.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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