a^2-12a+45=0

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Solution for a^2-12a+45=0 equation:


Simplifying
a2 + -12a + 45 = 0

Reorder the terms:
45 + -12a + a2 = 0

Solving
45 + -12a + a2 = 0

Solving for variable 'a'.

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -12a + -45 + a2 = 0 + -45

Reorder the terms:
45 + -45 + -12a + a2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -12a + a2 = 0 + -45
-12a + a2 = 0 + -45

Combine like terms: 0 + -45 = -45
-12a + a2 = -45

The a term is -12a.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12a + 36 + a2 = -45 + 36

Reorder the terms:
36 + -12a + a2 = -45 + 36

Combine like terms: -45 + 36 = -9
36 + -12a + a2 = -9

Factor a perfect square on the left side:
(a + -6)(a + -6) = -9

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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