7k^2+147=70k

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Solution for 7k^2+147=70k equation:


Simplifying
7k2 + 147 = 70k

Reorder the terms:
147 + 7k2 = 70k

Solving
147 + 7k2 = 70k

Solving for variable 'k'.

Reorder the terms:
147 + -70k + 7k2 = 70k + -70k

Combine like terms: 70k + -70k = 0
147 + -70k + 7k2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(21 + -10k + k2) = 0

Factor a trinomial.
7((3 + -1k)(7 + -1k)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(3 + -1k)' equal to zero and attempt to solve: Simplifying 3 + -1k = 0 Solving 3 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1k = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1k = 0 + -3 -1k = 0 + -3 Combine like terms: 0 + -3 = -3 -1k = -3 Divide each side by '-1'. k = 3 Simplifying k = 3

Subproblem 2

Set the factor '(7 + -1k)' equal to zero and attempt to solve: Simplifying 7 + -1k = 0 Solving 7 + -1k = 0 Move all terms containing k to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1k = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1k = 0 + -7 -1k = 0 + -7 Combine like terms: 0 + -7 = -7 -1k = -7 Divide each side by '-1'. k = 7 Simplifying k = 7

Solution

k = {3, 7}

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