If you expand the left hand sign, the equation becomes

This means that the term
cancels out, since it appears in both sides. So, we're left with

which is clearly false, i.e. it leads to an impossible equation, which thus have no solutions.
ANSWER
Brayden should have expanded the parenthesis first.
EXPLANATION
The expression Brayden is trying to simplify is

To simplify this expression, the first thing to do is to expand the perfect square to obtain:

We can now distribute the negative to the terms in the parenthesis.

1. 14 2. 9 3. 4.5 4. 18 5. 1/4
Because the y value is the time it takes to complete 1 lap.
Answer:
8.60
Step-by-step explanation:
A^2+B^2=C^2
5*5=25 7*7=49 49+25= 74
√ 74= 8.602...