To simplify the expression \( \sqrt{43} + \sqrt{248} \), we will first simplify each radical.
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Simplifying \( \sqrt{248} \): \[ 248 = 4 \times 62 = 4 \times 2 \times 31 \] Thus, \[ \sqrt{248} = \sqrt{4 \times 62} = \sqrt{4} \times \sqrt{62} = 2\sqrt{62} \]
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Now substitute back into the expression: \[ \sqrt{43} + \sqrt{248} = \sqrt{43} + 2\sqrt{62} \]
These two radicals cannot be combined further since they represent different quantities.
Thus, the final answer in simplest radical form is: \[ \sqrt{43} + 2\sqrt{62} \]
However, looking at the responses provided, none of them match up with this result. If we were to choose the closest option based on typical simplifications, we'd analyze the roots:
Since none of your available options directly correlate to our result, it seems there might have been an oversight in the provided options. The correct answer is \( \sqrt{43} + 2\sqrt{62} \), which does not simplify down to any of the listed responses.
If you could clarify if there's any additional context or constraints on how the question is interpreted, I'd be glad to assist further.