Question

Please HELP ME!!!!!! No one is helping me :(

Answer 1

Obviously, you're solving for e. Divide both sides by 9f to get
`e^(2)= (49)/(9f)`. Undo the square on the e by taking the square root of both sides, leaving you with
`e= ( √(49) )/( √(9f) )`. Both 49 and 9 are perfect squares, so simplify accordingly to get that
`e=+/- (7)/(3 √(f) )`. If you have to rationalize the denomiator, then your final answer would be
`e=+/- (7 √(f) )/(3f)`