p^2+9p+28=0

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Solution for p^2+9p+28=0 equation:


Simplifying
p2 + 9p + 28 = 0

Reorder the terms:
28 + 9p + p2 = 0

Solving
28 + 9p + p2 = 0

Solving for variable 'p'.

Begin completing the square.

Move the constant term to the right:

Add '-28' to each side of the equation.
28 + 9p + -28 + p2 = 0 + -28

Reorder the terms:
28 + -28 + 9p + p2 = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 9p + p2 = 0 + -28
9p + p2 = 0 + -28

Combine like terms: 0 + -28 = -28
9p + p2 = -28

The p term is 9p.  Take half its coefficient (4.5).
Square it (20.25) and add it to both sides.

Add '20.25' to each side of the equation.
9p + 20.25 + p2 = -28 + 20.25

Reorder the terms:
20.25 + 9p + p2 = -28 + 20.25

Combine like terms: -28 + 20.25 = -7.75
20.25 + 9p + p2 = -7.75

Factor a perfect square on the left side:
(p + 4.5)(p + 4.5) = -7.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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