6r^2+55r+56=0

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Solution for 6r^2+55r+56=0 equation:


Simplifying
6r2 + 55r + 56 = 0

Reorder the terms:
56 + 55r + 6r2 = 0

Solving
56 + 55r + 6r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(8 + r)(7 + 6r) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + 6r)' equal to zero and attempt to solve: Simplifying 7 + 6r = 0 Solving 7 + 6r = 0 Move all terms containing r to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 6r = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 6r = 0 + -7 6r = 0 + -7 Combine like terms: 0 + -7 = -7 6r = -7 Divide each side by '6'. r = -1.166666667 Simplifying r = -1.166666667

Solution

r = {-8, -1.166666667}

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