Question

$\frac{10 + \sqrt{ {10}^{2} - 4 \times 2 \times 12} }{2 \times 2}$
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Answer 1

$\frac{10 + \sqrt{ {10}^{2} - 4 \times 2 \times 12 } }{2 \times 2 } = \\ \\ \frac{10 + \sqrt{100 - 96} }{2 \times 2} \\ \\ \frac{10 \times \sqrt{4} }{2 \times 2}$

$\frac{10 + 2}{2 \times 2} \\ \\ \frac{12}{2 \times 2} \\ \\ \frac{6}{2} \\ \\ 3$