Step-by-step explanation:
t18 = a+(18-1)d = a+ 17d
t14 = a+(14-1)d = a+13d
a+17d-a-13d = 32
4d = 32
d = 8
3) Discriminat = b²-4ac
= x² + 20
I hope this is help full to you
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Step-by-step explanation:
t18 = a+(18-1)d = a+ 17d
t14 = a+(14-1)d = a+13d
a+17d-a-13d = 32
4d = 32
d = 8
3) Discriminat = b²-4ac
= x² + 20
I hope this is help full to you