Question

Given f(x) = 2x^2 - 5x, determine the value of f(4).​

Answer 1

12

Explanation:

f(x) = 2x^2 - 5x

Let x=4

f(4) = 2 (4)^2 -5(4)

Exponents first

= 2*16 -5*4

Multiply

=32 -20

subtract

=12