Which of the following value pairs can be used as m and n to factor the expression?

Correct choice is C. 3, -15.

Step-by-step explanation:

Question says to factor

Now we need to find about which of the given value pairs can be used as m and n to factor the expression.

Compare with standard quadratic form , we get:

a=9, b=-12, c=-5

Then ac=9(-5)=-45

Now we need to find two numbers m and n such that

m*n=ac=-45

and m+n=b=-12

only choice that satisfies above equations is (3,-15).

Hence correct choice is C. 3, -15.

50-60=10

step-by-step explanation: