Question

Let f(w) = 2w^3 - 5. What is f(4)?

Answer 1

f(4) =123

Explanation:

first your going to put in 4 for every w

then, think of PEMDAS.

after you solve your parenthesis, then exponents Multiply/devide Then, add/subtract.

2(4)^3 -5

2* 64 -5

128 - 5

123 = f(4)

Answer 2

F(4) = 2(4)^3 -5
= 2(64) -5

= 128-5
= 123

Hope this helps!