Evaluate
\frac{5-\sqrt{7}}{4}\approx 0.588562172
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\frac{-40+8\sqrt{7}}{-32}
Factor 448=8^{2}\times 7. Rewrite the square root of the product \sqrt{8^{2}\times 7} as the product of square roots \sqrt{8^{2}}\sqrt{7}. Take the square root of 8^{2}.
Examples
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Matrix
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Simultaneous equation
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Limits
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