(2p+5)(-4)=p^2+20

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Solution for (2p+5)(-4)=p^2+20 equation:


Simplifying
(2p + 5)(-4) = p2 + 20

Reorder the terms:
(5 + 2p)(-4) = p2 + 20

Reorder the terms for easier multiplication:
-4(5 + 2p) = p2 + 20
(5 * -4 + 2p * -4) = p2 + 20
(-20 + -8p) = p2 + 20

Reorder the terms:
-20 + -8p = 20 + p2

Solving
-20 + -8p = 20 + p2

Solving for variable 'p'.

Reorder the terms:
-20 + -20 + -8p + -1p2 = 20 + p2 + -20 + -1p2

Combine like terms: -20 + -20 = -40
-40 + -8p + -1p2 = 20 + p2 + -20 + -1p2

Reorder the terms:
-40 + -8p + -1p2 = 20 + -20 + p2 + -1p2

Combine like terms: 20 + -20 = 0
-40 + -8p + -1p2 = 0 + p2 + -1p2
-40 + -8p + -1p2 = p2 + -1p2

Combine like terms: p2 + -1p2 = 0
-40 + -8p + -1p2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(40 + 8p + p2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(40 + 8p + p2)' equal to zero and attempt to solve: Simplifying 40 + 8p + p2 = 0 Solving 40 + 8p + p2 = 0 Begin completing the square. Move the constant term to the right: Add '-40' to each side of the equation. 40 + 8p + -40 + p2 = 0 + -40 Reorder the terms: 40 + -40 + 8p + p2 = 0 + -40 Combine like terms: 40 + -40 = 0 0 + 8p + p2 = 0 + -40 8p + p2 = 0 + -40 Combine like terms: 0 + -40 = -40 8p + p2 = -40 The p term is 8p. Take half its coefficient (4). Square it (16) and add it to both sides. Add '16' to each side of the equation. 8p + 16 + p2 = -40 + 16 Reorder the terms: 16 + 8p + p2 = -40 + 16 Combine like terms: -40 + 16 = -24 16 + 8p + p2 = -24 Factor a perfect square on the left side: (p + 4)(p + 4) = -24 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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