tolong kerjakan ya kakak f(x)=2x kuadrat +2x-15 x=1,2,3,4,5,6,7,8

f (x) =2x² +2x-15
f(1)= 2.1²+ 2.1 -15
= 2+2-15
=4-15
= -11

f (2) = 2. 2²+ 2.2 -15
= 2.4+ 4-15
=8+4-15
=-3
dst