Question

F(x) = 4x2 + 7x - 18
Find f(-9)

Answer 1

f(-9)= 243

Explanation:

f(x) = 4x²+7x -18

f(-9) = 4(-9)²+7(-9)-18

= 4(81) -63-18

= 324- 81

= 243

Answer 2

Answer:279

Explanation:

Bc