5p^2-p+12=9

Solution for 5p^2-p+12=9 equation:

Simplifying
5p2 + -1p + 12 = 9

Reorder the terms:
12 + -1p + 5p2 = 9

Solving
12 + -1p + 5p2 = 9

Solving for variable 'p'.

Reorder the terms:
12 + -9 + -1p + 5p2 = 9 + -9

Combine like terms: 12 + -9 = 3
3 + -1p + 5p2 = 9 + -9

Combine like terms: 9 + -9 = 0
3 + -1p + 5p2 = 0

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

Divide each side by '5'.
0.6 + -0.2p + p2 = 0

Move the constant term to the right:

Add '-0.6' to each side of the equation.
0.6 + -0.2p + -0.6 + p2 = 0 + -0.6

Reorder the terms:
0.6 + -0.6 + -0.2p + p2 = 0 + -0.6

Combine like terms: 0.6 + -0.6 = 0.0
0.0 + -0.2p + p2 = 0 + -0.6
-0.2p + p2 = 0 + -0.6

Combine like terms: 0 + -0.6 = -0.6
-0.2p + p2 = -0.6

The p term is -0.2p.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2p + 0.01 + p2 = -0.6 + 0.01

Reorder the terms:
0.01 + -0.2p + p2 = -0.6 + 0.01

Combine like terms: -0.6 + 0.01 = -0.59
0.01 + -0.2p + p2 = -0.59

Factor a perfect square on the left side:
(p + -0.1)(p + -0.1) = -0.59

Can't calculate square root of the right side.

The solution to this equation could not be determined.