Question

Find the value of f(−9) and g(−2) if f(x)=−5x−2 and g(x)=3x2−21x.

Answer 1

Answer:

F(-9) = -42

G(-2) = 54

Step-by-step explanation:

f(-9) = 5(-9) - 2

-40 - 2 = -42

$g(-2) = 3x^{2} - 21x$

$3(-2)^{2} - 21(-2)$

$3(4) + 42$

$12 + 42 = 54$