7r^2-61r+44=4

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Solution for 7r^2-61r+44=4 equation:


Simplifying
7r2 + -61r + 44 = 4

Reorder the terms:
44 + -61r + 7r2 = 4

Solving
44 + -61r + 7r2 = 4

Solving for variable 'r'.

Reorder the terms:
44 + -4 + -61r + 7r2 = 4 + -4

Combine like terms: 44 + -4 = 40
40 + -61r + 7r2 = 4 + -4

Combine like terms: 4 + -4 = 0
40 + -61r + 7r2 = 0

Factor a trinomial.
(5 + -7r)(8 + -1r) = 0

Subproblem 1

Set the factor '(5 + -7r)' equal to zero and attempt to solve: Simplifying 5 + -7r = 0 Solving 5 + -7r = 0 Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -7r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7r = 0 + -5 -7r = 0 + -5 Combine like terms: 0 + -5 = -5 -7r = -5 Divide each side by '-7'. r = 0.7142857143 Simplifying r = 0.7142857143

Subproblem 2

Set the factor '(8 + -1r)' equal to zero and attempt to solve: Simplifying 8 + -1r = 0 Solving 8 + -1r = 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 + -1r = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1r = 0 + -8 -1r = 0 + -8 Combine like terms: 0 + -8 = -8 -1r = -8 Divide each side by '-1'. r = 8 Simplifying r = 8

Solution

r = {0.7142857143, 8}

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