Question

Need help on two questions will give out a medal

The quadratic function f(x) crosses the x-axis at -3 and 1.
What are the solutions of f(x) = 0?
A.
-3 and -1
B.
-3 and 1
C.
-1 and 3
D.
1 and 3
Question 2;
Use a quadratic equation to find two real numbers that satisfies the situation.
The sum of the two numbers is 12, and their product is -28.

a.
2, 14
c.
2, -14
b.
-2, 14
d.
no such numbers exist

Answer 1

Question 2: b