p^2+4p+77=9

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Solution for p^2+4p+77=9 equation:


Simplifying
p2 + 4p + 77 = 9

Reorder the terms:
77 + 4p + p2 = 9

Solving
77 + 4p + p2 = 9

Solving for variable 'p'.

Reorder the terms:
77 + -9 + 4p + p2 = 9 + -9

Combine like terms: 77 + -9 = 68
68 + 4p + p2 = 9 + -9

Combine like terms: 9 + -9 = 0
68 + 4p + p2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-68' to each side of the equation.
68 + 4p + -68 + p2 = 0 + -68

Reorder the terms:
68 + -68 + 4p + p2 = 0 + -68

Combine like terms: 68 + -68 = 0
0 + 4p + p2 = 0 + -68
4p + p2 = 0 + -68

Combine like terms: 0 + -68 = -68
4p + p2 = -68

The p term is 4p.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4p + 4 + p2 = -68 + 4

Reorder the terms:
4 + 4p + p2 = -68 + 4

Combine like terms: -68 + 4 = -64
4 + 4p + p2 = -64

Factor a perfect square on the left side:
(p + 2)(p + 2) = -64

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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