7p^2=-17p-4

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Solution for 7p^2=-17p-4 equation:


Simplifying
7p2 = -17p + -4

Reorder the terms:
7p2 = -4 + -17p

Solving
7p2 = -4 + -17p

Solving for variable 'p'.

Reorder the terms:
4 + 17p + 7p2 = -4 + -17p + 4 + 17p

Reorder the terms:
4 + 17p + 7p2 = -4 + 4 + -17p + 17p

Combine like terms: -4 + 4 = 0
4 + 17p + 7p2 = 0 + -17p + 17p
4 + 17p + 7p2 = -17p + 17p

Combine like terms: -17p + 17p = 0
4 + 17p + 7p2 = 0

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

Divide each side by '7'.
0.5714285714 + 2.428571429p + p2 = 0

Move the constant term to the right:

Add '-0.5714285714' to each side of the equation.
0.5714285714 + 2.428571429p + -0.5714285714 + p2 = 0 + -0.5714285714

Reorder the terms:
0.5714285714 + -0.5714285714 + 2.428571429p + p2 = 0 + -0.5714285714

Combine like terms: 0.5714285714 + -0.5714285714 = 0.0000000000
0.0000000000 + 2.428571429p + p2 = 0 + -0.5714285714
2.428571429p + p2 = 0 + -0.5714285714

Combine like terms: 0 + -0.5714285714 = -0.5714285714
2.428571429p + p2 = -0.5714285714

The p term is 2.428571429p.  Take half its coefficient (1.214285715).
Square it (1.474489798) and add it to both sides.

Add '1.474489798' to each side of the equation.
2.428571429p + 1.474489798 + p2 = -0.5714285714 + 1.474489798

Reorder the terms:
1.474489798 + 2.428571429p + p2 = -0.5714285714 + 1.474489798

Combine like terms: -0.5714285714 + 1.474489798 = 0.9030612266
1.474489798 + 2.428571429p + p2 = 0.9030612266

Factor a perfect square on the left side:
(p + 1.214285715)(p + 1.214285715) = 0.9030612266

Calculate the square root of the right side: 0.950295337

Break this problem into two subproblems by setting 
(p + 1.214285715) equal to 0.950295337 and -0.950295337.

Subproblem 1

p + 1.214285715 = 0.950295337 Simplifying p + 1.214285715 = 0.950295337 Reorder the terms: 1.214285715 + p = 0.950295337 Solving 1.214285715 + p = 0.950295337 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1.214285715' to each side of the equation. 1.214285715 + -1.214285715 + p = 0.950295337 + -1.214285715 Combine like terms: 1.214285715 + -1.214285715 = 0.000000000 0.000000000 + p = 0.950295337 + -1.214285715 p = 0.950295337 + -1.214285715 Combine like terms: 0.950295337 + -1.214285715 = -0.263990378 p = -0.263990378 Simplifying p = -0.263990378

Subproblem 2

p + 1.214285715 = -0.950295337 Simplifying p + 1.214285715 = -0.950295337 Reorder the terms: 1.214285715 + p = -0.950295337 Solving 1.214285715 + p = -0.950295337 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-1.214285715' to each side of the equation. 1.214285715 + -1.214285715 + p = -0.950295337 + -1.214285715 Combine like terms: 1.214285715 + -1.214285715 = 0.000000000 0.000000000 + p = -0.950295337 + -1.214285715 p = -0.950295337 + -1.214285715 Combine like terms: -0.950295337 + -1.214285715 = -2.164581052 p = -2.164581052 Simplifying p = -2.164581052

Solution

The solution to the problem is based on the solutions from the subproblems. p = {-0.263990378, -2.164581052}

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