Find the sum of prime factor 30. Given that a=4,5 b=0,-2 and c= -3, 7 ,find 2(a+3b+5c)
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The second and fourth answer are correct

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.