Question

if f(x) = x^2 -5x -1 then find the value of f(2) + f(-1)​.. please answer fast..

Answer 1

Answer:

-2

Step-by-step explanation:

when f(2)

f(2)=2²-5(2)-1

=4-10-1

= -7

when f(-1)

f(-1)=(-1)²-5(-1)-1

=1+5-1

=5

therefore,

f(2)+f(-1)= -7+5

= -2