Question

`10 {x}^(2) - 6 = 144`
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Answer 1

`\large\boxed{x=\pm√(13)}`

Explanation:

`10x^2-6=144\qquad\text{add 6 to both sides}\\\\10x^2=130\qquad\text{divide both sides by 10}\\\\x^2=13\to x=\pm√(13)`