In this one, you must make h = 0.
You get :
which can be further simplified to 
if you divide all of the numbers by -2.
Here you can use the quadratic formula again!
You get the numbers to be : 1.97 and -2.22
I had made a mistake to think that negative numbers can be included but in these questions, you can't have negative numbers as your answer. So the correct answer is 1.97!
You get :
Here you can use the quadratic formula again!
You get the numbers to be : 1.97 and -2.22
I had made a mistake to think that negative numbers can be included but in these questions, you can't have negative numbers as your answer. So the correct answer is 1.97!