Radicals. Simplify the expression. Give the exact value in simplified form. Rationalize any demoninators.
the square root of 343x ^13
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To simplify a square root, "take out" anything that is a "perfect square" that is, you take out front anything that has two copies of the same factor:
This is the required answer.
`sqrt(343x^13)` =`sqrt(7^3 x^13)`
`=(7^2 7.x^12 x)^(1/2)`
(by law of the exponent `(x^m)^n=x^(mn)` .)
`=7(7)^(1/2)xx x^6 (x)^(1/2)`
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