4.05+14.40=4.50p(p+3)

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Solution for 4.05+14.40=4.50p(p+3) equation:


Simplifying
4.05 + 14.40 = 4.50p(p + 3)

Combine like terms: 4.05 + 14.40 = 18.45
18.45 = 4.50p(p + 3)

Reorder the terms:
18.45 = 4.50p(3 + p)
18.45 = (3 * 4.50p + p * 4.50p)
18.45 = (13.5p + 4.50p2)

Solving
18.45 = 13.5p + 4.50p2

Solving for variable 'p'.

Reorder the terms:
18.45 + -13.5p + -4.50p2 = 13.5p + -13.5p + 4.50p2 + -4.50p2

Combine like terms: 13.5p + -13.5p = 0.0
18.45 + -13.5p + -4.50p2 = 0.0 + 4.50p2 + -4.50p2
18.45 + -13.5p + -4.50p2 = 4.50p2 + -4.50p2

Combine like terms: 4.50p2 + -4.50p2 = 0.00
18.45 + -13.5p + -4.50p2 = 0.00

Begin completing the square.  Divide all terms by
-4.50 the coefficient of the squared term: 

Divide each side by '-4.50'.
-4.1 + 3p + p2 = 0

Move the constant term to the right:

Add '4.1' to each side of the equation.
-4.1 + 3p + 4.1 + p2 = 0 + 4.1

Reorder the terms:
-4.1 + 4.1 + 3p + p2 = 0 + 4.1

Combine like terms: -4.1 + 4.1 = 0.0
0.0 + 3p + p2 = 0 + 4.1
3p + p2 = 0 + 4.1

Combine like terms: 0 + 4.1 = 4.1
3p + p2 = 4.1

The p term is 3p.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3p + 2.25 + p2 = 4.1 + 2.25

Reorder the terms:
2.25 + 3p + p2 = 4.1 + 2.25

Combine like terms: 4.1 + 2.25 = 6.35
2.25 + 3p + p2 = 6.35

Factor a perfect square on the left side:
(p + 1.5)(p + 1.5) = 6.35

Calculate the square root of the right side: 2.519920634

Break this problem into two subproblems by setting 
(p + 1.5) equal to 2.519920634 and -2.519920634.

Subproblem 1

p + 1.5 = 2.519920634 Simplifying p + 1.5 = 2.519920634 Reorder the terms: 1.5 + p = 2.519920634 Solving 1.5 + p = 2.519920634 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + p = 2.519920634 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + p = 2.519920634 + -1.5 p = 2.519920634 + -1.5 Combine like terms: 2.519920634 + -1.5 = 1.019920634 p = 1.019920634 Simplifying p = 1.019920634

Subproblem 2

p + 1.5 = -2.519920634 Simplifying p + 1.5 = -2.519920634 Reorder the terms: 1.5 + p = -2.519920634 Solving 1.5 + p = -2.519920634 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + p = -2.519920634 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + p = -2.519920634 + -1.5 p = -2.519920634 + -1.5 Combine like terms: -2.519920634 + -1.5 = -4.019920634 p = -4.019920634 Simplifying p = -4.019920634

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.019920634, -4.019920634}

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