(2r-5)(2r-5)=

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Solution for (2r-5)(2r-5)= equation:


Simplifying
(2r + -5)(2r + -5) = 0

Reorder the terms:
(-5 + 2r)(2r + -5) = 0

Reorder the terms:
(-5 + 2r)(-5 + 2r) = 0

Multiply (-5 + 2r) * (-5 + 2r)
(-5(-5 + 2r) + 2r * (-5 + 2r)) = 0
((-5 * -5 + 2r * -5) + 2r * (-5 + 2r)) = 0
((25 + -10r) + 2r * (-5 + 2r)) = 0
(25 + -10r + (-5 * 2r + 2r * 2r)) = 0
(25 + -10r + (-10r + 4r2)) = 0

Combine like terms: -10r + -10r = -20r
(25 + -20r + 4r2) = 0

Solving
25 + -20r + 4r2 = 0

Solving for variable 'r'.

Factor a trinomial.
(5 + -2r)(5 + -2r) = 0

Subproblem 1

Set the factor '(5 + -2r)' equal to zero and attempt to solve: Simplifying 5 + -2r = 0 Solving 5 + -2r = 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 + -2r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2r = 0 + -5 -2r = 0 + -5 Combine like terms: 0 + -5 = -5 -2r = -5 Divide each side by '-2'. r = 2.5 Simplifying r = 2.5

Subproblem 2

Set the factor '(5 + -2r)' equal to zero and attempt to solve: Simplifying 5 + -2r = 0 Solving 5 + -2r = 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 + -2r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2r = 0 + -5 -2r = 0 + -5 Combine like terms: 0 + -5 = -5 -2r = -5 Divide each side by '-2'. r = 2.5 Simplifying r = 2.5

Solution

r = {2.5, 2.5}

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