Question 140982
f(t)=2t^2-4t-1
find f(2),F(-1
f(2)=2*2^2-4*2-1
f(2)=2*4-8-1
f(2)=8-8-1
f(2)=-1 answer.
f(-1)=2*-1^2-4*-1-1
f(-1)=2*1+4-1
f9-1)=2+4-1
f(-1)=5 answer.