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