2p^2-7p+8=0

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Solution for 2p^2-7p+8=0 equation:


Simplifying
2p2 + -7p + 8 = 0

Reorder the terms:
8 + -7p + 2p2 = 0

Solving
8 + -7p + 2p2 = 0

Solving for variable 'p'.

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

Divide each side by '2'.
4 + -3.5p + p2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -3.5p + -4 + p2 = 0 + -4

Reorder the terms:
4 + -4 + -3.5p + p2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -3.5p + p2 = 0 + -4
-3.5p + p2 = 0 + -4

Combine like terms: 0 + -4 = -4
-3.5p + p2 = -4

The p term is -3.5p.  Take half its coefficient (-1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
-3.5p + 3.0625 + p2 = -4 + 3.0625

Reorder the terms:
3.0625 + -3.5p + p2 = -4 + 3.0625

Combine like terms: -4 + 3.0625 = -0.9375
3.0625 + -3.5p + p2 = -0.9375

Factor a perfect square on the left side:
(p + -1.75)(p + -1.75) = -0.9375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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