Step-by-step explanation:
F(x) = -2x² + x + 1.
Therefore F(3) = -2(3)² + (3) + 1
= -18 + 3 + 1 = -14.
Answer:
What is the question
12
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
180
