7p^2-22=-11p

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Solution for 7p^2-22=-11p equation:


Simplifying
7p2 + -22 = -11p

Reorder the terms:
-22 + 7p2 = -11p

Solving
-22 + 7p2 = -11p

Solving for variable 'p'.

Reorder the terms:
-22 + 11p + 7p2 = -11p + 11p

Combine like terms: -11p + 11p = 0
-22 + 11p + 7p2 = 0

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

Divide each side by '7'.
-3.142857143 + 1.571428571p + p2 = 0

Move the constant term to the right:

Add '3.142857143' to each side of the equation.
-3.142857143 + 1.571428571p + 3.142857143 + p2 = 0 + 3.142857143

Reorder the terms:
-3.142857143 + 3.142857143 + 1.571428571p + p2 = 0 + 3.142857143

Combine like terms: -3.142857143 + 3.142857143 = 0.000000000
0.000000000 + 1.571428571p + p2 = 0 + 3.142857143
1.571428571p + p2 = 0 + 3.142857143

Combine like terms: 0 + 3.142857143 = 3.142857143
1.571428571p + p2 = 3.142857143

The p term is 1.571428571p.  Take half its coefficient (0.7857142855).
Square it (0.6173469384) and add it to both sides.

Add '0.6173469384' to each side of the equation.
1.571428571p + 0.6173469384 + p2 = 3.142857143 + 0.6173469384

Reorder the terms:
0.6173469384 + 1.571428571p + p2 = 3.142857143 + 0.6173469384

Combine like terms: 3.142857143 + 0.6173469384 = 3.7602040814
0.6173469384 + 1.571428571p + p2 = 3.7602040814

Factor a perfect square on the left side:
(p + 0.7857142855)(p + 0.7857142855) = 3.7602040814

Calculate the square root of the right side: 1.939124566

Break this problem into two subproblems by setting 
(p + 0.7857142855) equal to 1.939124566 and -1.939124566.

Subproblem 1

p + 0.7857142855 = 1.939124566 Simplifying p + 0.7857142855 = 1.939124566 Reorder the terms: 0.7857142855 + p = 1.939124566 Solving 0.7857142855 + p = 1.939124566 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.7857142855' to each side of the equation. 0.7857142855 + -0.7857142855 + p = 1.939124566 + -0.7857142855 Combine like terms: 0.7857142855 + -0.7857142855 = 0.0000000000 0.0000000000 + p = 1.939124566 + -0.7857142855 p = 1.939124566 + -0.7857142855 Combine like terms: 1.939124566 + -0.7857142855 = 1.1534102805 p = 1.1534102805 Simplifying p = 1.1534102805

Subproblem 2

p + 0.7857142855 = -1.939124566 Simplifying p + 0.7857142855 = -1.939124566 Reorder the terms: 0.7857142855 + p = -1.939124566 Solving 0.7857142855 + p = -1.939124566 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.7857142855' to each side of the equation. 0.7857142855 + -0.7857142855 + p = -1.939124566 + -0.7857142855 Combine like terms: 0.7857142855 + -0.7857142855 = 0.0000000000 0.0000000000 + p = -1.939124566 + -0.7857142855 p = -1.939124566 + -0.7857142855 Combine like terms: -1.939124566 + -0.7857142855 = -2.7248388515 p = -2.7248388515 Simplifying p = -2.7248388515

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.1534102805, -2.7248388515}

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