Evaluate
-2\sqrt{23}-2\sqrt{37}\approx -21.757188107
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-2\sqrt{37}-2\sqrt{23}
Factor 148=2^{2}\times 37. Rewrite the square root of the product \sqrt{2^{2}\times 37} as the product of square roots \sqrt{2^{2}}\sqrt{37}. Take the square root of 2^{2}.
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