a^2-a+7=0

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Solution for a^2-a+7=0 equation:


Simplifying
a2 + -1a + 7 = 0

Reorder the terms:
7 + -1a + a2 = 0

Solving
7 + -1a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '-7' to each side of the equation.
7 + -1a + -7 + a2 = 0 + -7

Reorder the terms:
7 + -7 + -1a + a2 = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -1a + a2 = 0 + -7
-1a + a2 = 0 + -7

Combine like terms: 0 + -7 = -7
-1a + a2 = -7

The a term is -1a.  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.
-1a + 0.25 + a2 = -7 + 0.25

Reorder the terms:
0.25 + -1a + a2 = -7 + 0.25

Combine like terms: -7 + 0.25 = -6.75
0.25 + -1a + a2 = -6.75

Factor a perfect square on the left side:
(a + -0.5)(a + -0.5) = -6.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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