Question

f(x)=2x^2+x-1 if f(2),f(-1) polynomial
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Answer 1

Answer:

f(2)=9 and. f(-1)=3

Step-by-step explanation:

f(x)=2x²+x-1

f(2)=2*2²+2-1

=2*4+2-1

=8+1

= 9

f(1)=2*(-1)²+2-1

=2+2-1

=4-1

=3