f(t)=t²+3t-1 t=-3/2

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f(t)=t²+3t-1 t=-3/2
f(t)=t²+3t-1 t=-3/2

f(t)=t²+3t-1 t=-3/2
t=-3/2
f(t)
=(t+3/2)²-9/4-1
=0-13/4
=13/4