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Evaluate
83×644÷2. \sqrt[3]{8} \times \sqrt[4]{64} \div \sqrt{2}. 38×464÷2.
What is the value of bbb that satisfies a15a17×aa157×a17a125=ab?\sqrt{\frac{a^{\frac{1}{5}}}{a^{\frac{1}{7}}}} \times \sqrt[7]{\frac{a}{a^{\frac{1}{5}}}} \times \sqrt[5]{\frac{a^{\frac{1}{7}}}{a^{\frac{1}{2}}}}=\sqrt[b]{a}?a71a51×7a51a×5a21a71=ba?
Details and assumptions
bbb is the index of the root on the right hand side.
What is the value of (13+−169)(10−−100) \left(13 + \sqrt{-169}\right)\left(10 - \sqrt{-100}\right) (13+−169)(10−−100)?
If x=10+1273+10−1273,x=\sqrt[3]{10+\sqrt{127}}+\sqrt[3]{10-\sqrt{127}},x=310+127+310−127, what is the value of x3+9x?x^3+9x ?x3+9x?
Simplify
20+291. \sqrt{20 + 2\sqrt{91}}. 20+291.
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