Question

Find f(-2) when f(x)=2x^2+5x-4

Answer 1

Answer:

-6

Step-by-step explanation:

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

Let x= -2

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

     = 2 (4)+5(-2)-4

     = 8 -10 -4

     = -6