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OpenStudy (theresa.womack):
Which is a value of x, when 3x^2+4=40 A. 2√3 B. 2√6 C. 2√11 D. 3√2
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OpenStudy (anonymous):
\[ \begin{align} 3x^2+4&=40\\ 3x^2&=36\\ x^2&=12\\ x&=\pm\sqrt{12}\\ x&=\pm2\sqrt{3} \end{align} \]
OpenStudy (theresa.womack):
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