![{3k}^{2} = 243 \\ = {3k}^{2} - 243 = 0 \\ = 3( {k}^{2} - 81) = 0 \\ = 3[(k) ^{2} - {(9)}^{2} ] = 0 \\ = 3(k - 9)(k + 9) = 0 \\ = (k - 9)(k + 9) = 0 \\ = k = 9 \: \: or \: \: - 9](/tpl/images/2600/2256/5c9c1.png)
(Solving quadratics by square roots)
3k^2 = 243
I have finals tomorrow and it says sol...
Mathematics, 17.12.2021 07:40 mvtthewisdead
(Solving quadratics by square roots)
3k^2 = 243
I have finals tomorrow and it says solve each equation by taking square roots but I’m confused on it. Plz help
Answers: 3
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