8a^2-19a+15=0

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Solution for 8a^2-19a+15=0 equation:


Simplifying
8a2 + -19a + 15 = 0

Reorder the terms:
15 + -19a + 8a2 = 0

Solving
15 + -19a + 8a2 = 0

Solving for variable 'a'.

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

Divide each side by '8'.
1.875 + -2.375a + a2 = 0

Move the constant term to the right:

Add '-1.875' to each side of the equation.
1.875 + -2.375a + -1.875 + a2 = 0 + -1.875

Reorder the terms:
1.875 + -1.875 + -2.375a + a2 = 0 + -1.875

Combine like terms: 1.875 + -1.875 = 0.000
0.000 + -2.375a + a2 = 0 + -1.875
-2.375a + a2 = 0 + -1.875

Combine like terms: 0 + -1.875 = -1.875
-2.375a + a2 = -1.875

The a term is -2.375a.  Take half its coefficient (-1.1875).
Square it (1.41015625) and add it to both sides.

Add '1.41015625' to each side of the equation.
-2.375a + 1.41015625 + a2 = -1.875 + 1.41015625

Reorder the terms:
1.41015625 + -2.375a + a2 = -1.875 + 1.41015625

Combine like terms: -1.875 + 1.41015625 = -0.46484375
1.41015625 + -2.375a + a2 = -0.46484375

Factor a perfect square on the left side:
(a + -1.1875)(a + -1.1875) = -0.46484375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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