7p^2-70p+170=0

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Solution for 7p^2-70p+170=0 equation:


Simplifying
7p2 + -70p + 170 = 0

Reorder the terms:
170 + -70p + 7p2 = 0

Solving
170 + -70p + 7p2 = 0

Solving for variable 'p'.

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

Divide each side by '7'.
24.28571429 + -10p + p2 = 0

Move the constant term to the right:

Add '-24.28571429' to each side of the equation.
24.28571429 + -10p + -24.28571429 + p2 = 0 + -24.28571429

Reorder the terms:
24.28571429 + -24.28571429 + -10p + p2 = 0 + -24.28571429

Combine like terms: 24.28571429 + -24.28571429 = 0.00000000
0.00000000 + -10p + p2 = 0 + -24.28571429
-10p + p2 = 0 + -24.28571429

Combine like terms: 0 + -24.28571429 = -24.28571429
-10p + p2 = -24.28571429

The p term is -10p.  Take half its coefficient (-5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
-10p + 25 + p2 = -24.28571429 + 25

Reorder the terms:
25 + -10p + p2 = -24.28571429 + 25

Combine like terms: -24.28571429 + 25 = 0.71428571
25 + -10p + p2 = 0.71428571

Factor a perfect square on the left side:
(p + -5)(p + -5) = 0.71428571

Calculate the square root of the right side: 0.845154252

Break this problem into two subproblems by setting 
(p + -5) equal to 0.845154252 and -0.845154252.

Subproblem 1

p + -5 = 0.845154252 Simplifying p + -5 = 0.845154252 Reorder the terms: -5 + p = 0.845154252 Solving -5 + p = 0.845154252 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + p = 0.845154252 + 5 Combine like terms: -5 + 5 = 0 0 + p = 0.845154252 + 5 p = 0.845154252 + 5 Combine like terms: 0.845154252 + 5 = 5.845154252 p = 5.845154252 Simplifying p = 5.845154252

Subproblem 2

p + -5 = -0.845154252 Simplifying p + -5 = -0.845154252 Reorder the terms: -5 + p = -0.845154252 Solving -5 + p = -0.845154252 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + p = -0.845154252 + 5 Combine like terms: -5 + 5 = 0 0 + p = -0.845154252 + 5 p = -0.845154252 + 5 Combine like terms: -0.845154252 + 5 = 4.154845748 p = 4.154845748 Simplifying p = 4.154845748

Solution

The solution to the problem is based on the solutions from the subproblems. p = {5.845154252, 4.154845748}

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