3 years ago

How does this simplify?

1 answer:

6 0

$\bf \cfrac{-6\pm\sqrt{40}}{2}\implies \cfrac{-6\pm\sqrt{2^2\cdot 10}}{2}\implies \cfrac{-6\pm 2\sqrt{10}}{2}
\\\\\\
-3\pm\sqrt{10}$

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