Question

Let ​f(x)=−5x+18 and ​g(x)=x2+15.

Find ​f(−2​)−​g(−2​).

Answer 1

21

Explanation:

-5(-2)-(-2)²+15

10-(4)+15

10-4+15

21

Answer 2

9

Explanation:

f(x)=−5x+18

f(-2) = -5(-2)+18 = 10+18 = 28

​g(x)=x^2+15

g(-2) = (-2)^2 +15 = 4+15 = 19

f(02) - g(-2) = 28 - 19 = 9