Step One
Factor f(x)
f(x) = (x + 5)(x - 2)
Step Two
The zeros occur when either (x + 5) = 0 or (x - 2) = 0
x + 5 = 0
x = -5
x - 2 =0
x = 2
Step 3
Record the zeros
(-5,0) or (2,0) <<<<<< answer.
Answer:
1) <u><em>Formula for experimental probability:</em></u>
Experimental Probability = 
2) Any performance or a random experiment is called a trial.
Ali's solution is incorrect
same as 9y + 1y
10y