r^2+14r+40=0

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Solution for r^2+14r+40=0 equation:


Simplifying
r2 + 14r + 40 = 0

Reorder the terms:
40 + 14r + r2 = 0

Solving
40 + 14r + r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(10 + r)(4 + r) = 0

Subproblem 1

Set the factor '(10 + r)' equal to zero and attempt to solve: Simplifying 10 + r = 0 Solving 10 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + r = 0 + -10 Combine like terms: 10 + -10 = 0 0 + r = 0 + -10 r = 0 + -10 Combine like terms: 0 + -10 = -10 r = -10 Simplifying r = -10

Subproblem 2

Set the factor '(4 + r)' equal to zero and attempt to solve: Simplifying 4 + r = 0 Solving 4 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + r = 0 + -4 r = 0 + -4 Combine like terms: 0 + -4 = -4 r = -4 Simplifying r = -4

Solution

r = {-10, -4}

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