F f (x) = 4 - x2 and g (x) = 6x, which expression is equivalent to (g - f) (3) ?

Question

Mathematics

Jazmine Hayden

17 June, 16:17

F f (x) = 4 - x2 and g (x) = 6x, which expression is equivalent to (g - f) (3) ?

+3

Answers (1)

Know the Answer?

Wayne Thomas · Answer 1

F (x) = - x2 (squared)

g (x) = 6x

(g - f) (3) = 6 (3) - ( - (3) 2 + 4)

(g - f) (3) = 18 - (-9 + 4)

(g - f) (3) = 18 - (-5)

(g - f) (3) = 18 + 5

(g - f) (3) = 23

Note: All of the number 2 means squared