Question

Use a quadratic equation to find, if possible, two real numbers that satisfy the following: Their product is 32 and their sum is -12.

Select one:
a. 8 and 4
b. -8 and -4
c. -2 and -16
d. 2 and -16

Answer 1

There is a way to find this out.
The sum of the two numbers is -12, yes?

Answer 2

What? which numbers?

Answer 3

Of course, THAT, or just test out the choices. You have choices after all, but this longer method is more informative.

Answer 4

ok? so what do I do?

Answer 5

Test the choices. Which of the choices has a pair of numbers which, when multiplied, give 32?

Answer 6

c

Answer 7

b actually nevermind

Answer 8

Well, that's it then :)