Well, she tossed it all out there for you.  I'll go into
a little more detail, so you can see better how to use the
quadratic formula:



Compare to



and see that , , 

Then we use the quadratic formula which you must memorize:



You might write empty parentheses for all the letters on the right,
like this:



There are TWO places to put the A's (A is 2)



There are TWO places to put the B's (B is 25)



But there is only ONE place to put the C (C is 33)









Using the PLUS sign:



Using the MINUS sign:



Edwin