Solve using the quadratic formula.
3x2 - 7x - 3 = 0
a) x =
7 ±
13
2
b) x =
7 ±
85
6
c) x =
7 ±
85
2
d) x = -
7 ±
13
6
e) x = -
7 ±
13
4

The answer would be $68.04

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.