4k^2-125=-5k

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Solution for 4k^2-125=-5k equation:


Simplifying
4k2 + -125 = -5k

Reorder the terms:
-125 + 4k2 = -5k

Solving
-125 + 4k2 = -5k

Solving for variable 'k'.

Reorder the terms:
-125 + 5k + 4k2 = -5k + 5k

Combine like terms: -5k + 5k = 0
-125 + 5k + 4k2 = 0

Factor a trinomial.
(-25 + -4k)(5 + -1k) = 0

Subproblem 1

Set the factor '(-25 + -4k)' equal to zero and attempt to solve: Simplifying -25 + -4k = 0 Solving -25 + -4k = 0 Move all terms containing k to the left, all other terms to the right. Add '25' to each side of the equation. -25 + 25 + -4k = 0 + 25 Combine like terms: -25 + 25 = 0 0 + -4k = 0 + 25 -4k = 0 + 25 Combine like terms: 0 + 25 = 25 -4k = 25 Divide each side by '-4'. k = -6.25 Simplifying k = -6.25

Subproblem 2

Set the factor '(5 + -1k)' equal to zero and attempt to solve: Simplifying 5 + -1k = 0 Solving 5 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1k = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1k = 0 + -5 -1k = 0 + -5 Combine like terms: 0 + -5 = -5 -1k = -5 Divide each side by '-1'. k = 5 Simplifying k = 5

Solution

k = {-6.25, 5}

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