400=-p^2-3p+488

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Solution for 400=-p^2-3p+488 equation:


Simplifying
400 = -1p2 + -3p + 488

Reorder the terms:
400 = 488 + -3p + -1p2

Solving
400 = 488 + -3p + -1p2

Solving for variable 'p'.

Combine like terms: 400 + -488 = -88
-88 + 3p + p2 = 488 + -3p + -1p2 + -488 + 3p + p2

Reorder the terms:
-88 + 3p + p2 = 488 + -488 + -3p + 3p + -1p2 + p2

Combine like terms: 488 + -488 = 0
-88 + 3p + p2 = 0 + -3p + 3p + -1p2 + p2
-88 + 3p + p2 = -3p + 3p + -1p2 + p2

Combine like terms: -3p + 3p = 0
-88 + 3p + p2 = 0 + -1p2 + p2
-88 + 3p + p2 = -1p2 + p2

Combine like terms: -1p2 + p2 = 0
-88 + 3p + p2 = 0

Factor a trinomial.
(-11 + -1p)(8 + -1p) = 0

Subproblem 1

Set the factor '(-11 + -1p)' equal to zero and attempt to solve: Simplifying -11 + -1p = 0 Solving -11 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '11' to each side of the equation. -11 + 11 + -1p = 0 + 11 Combine like terms: -11 + 11 = 0 0 + -1p = 0 + 11 -1p = 0 + 11 Combine like terms: 0 + 11 = 11 -1p = 11 Divide each side by '-1'. p = -11 Simplifying p = -11

Subproblem 2

Set the factor '(8 + -1p)' equal to zero and attempt to solve: Simplifying 8 + -1p = 0 Solving 8 + -1p = 0 Move all terms containing p to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1p = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1p = 0 + -8 -1p = 0 + -8 Combine like terms: 0 + -8 = -8 -1p = -8 Divide each side by '-1'. p = 8 Simplifying p = 8

Solution

p = {-11, 8}

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