Question

If f(x) =2/5 x² + 5/2 x + 1 , then f(-2) is equal to:


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Answer 1

Answer:

f(-2)=2/5×-2²+5/2×-2+1

=8/5-5+1

=8/5-25/5+5/5

=-12/5

Answer 2

Answer:

f(x)=2/5x^2+5/2x+1

=2/5×4-10/2+1

=8/5-10/2+1

= 16-50+10/10

= -24/10