3p^2-p+7=4p^2+3p-1

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Solution for 3p^2-p+7=4p^2+3p-1 equation:


Simplifying
3p2 + -1p + 7 = 4p2 + 3p + -1

Reorder the terms:
7 + -1p + 3p2 = 4p2 + 3p + -1

Reorder the terms:
7 + -1p + 3p2 = -1 + 3p + 4p2

Solving
7 + -1p + 3p2 = -1 + 3p + 4p2

Solving for variable 'p'.

Reorder the terms:
7 + 1 + -1p + -3p + 3p2 + -4p2 = -1 + 3p + 4p2 + 1 + -3p + -4p2

Combine like terms: 7 + 1 = 8
8 + -1p + -3p + 3p2 + -4p2 = -1 + 3p + 4p2 + 1 + -3p + -4p2

Combine like terms: -1p + -3p = -4p
8 + -4p + 3p2 + -4p2 = -1 + 3p + 4p2 + 1 + -3p + -4p2

Combine like terms: 3p2 + -4p2 = -1p2
8 + -4p + -1p2 = -1 + 3p + 4p2 + 1 + -3p + -4p2

Reorder the terms:
8 + -4p + -1p2 = -1 + 1 + 3p + -3p + 4p2 + -4p2

Combine like terms: -1 + 1 = 0
8 + -4p + -1p2 = 0 + 3p + -3p + 4p2 + -4p2
8 + -4p + -1p2 = 3p + -3p + 4p2 + -4p2

Combine like terms: 3p + -3p = 0
8 + -4p + -1p2 = 0 + 4p2 + -4p2
8 + -4p + -1p2 = 4p2 + -4p2

Combine like terms: 4p2 + -4p2 = 0
8 + -4p + -1p2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-8 + 4p + p2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + 4p + 8 + p2 = 0 + 8

Reorder the terms:
-8 + 8 + 4p + p2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + 4p + p2 = 0 + 8
4p + p2 = 0 + 8

Combine like terms: 0 + 8 = 8
4p + p2 = 8

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 = 8 + 4

Reorder the terms:
4 + 4p + p2 = 8 + 4

Combine like terms: 8 + 4 = 12
4 + 4p + p2 = 12

Factor a perfect square on the left side:
(p + 2)(p + 2) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(p + 2) equal to 3.464101615 and -3.464101615.

Subproblem 1

p + 2 = 3.464101615 Simplifying p + 2 = 3.464101615 Reorder the terms: 2 + p = 3.464101615 Solving 2 + p = 3.464101615 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + p = 3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + p = 3.464101615 + -2 p = 3.464101615 + -2 Combine like terms: 3.464101615 + -2 = 1.464101615 p = 1.464101615 Simplifying p = 1.464101615

Subproblem 2

p + 2 = -3.464101615 Simplifying p + 2 = -3.464101615 Reorder the terms: 2 + p = -3.464101615 Solving 2 + p = -3.464101615 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + p = -3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + p = -3.464101615 + -2 p = -3.464101615 + -2 Combine like terms: -3.464101615 + -2 = -5.464101615 p = -5.464101615 Simplifying p = -5.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.464101615, -5.464101615}

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