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B) f (3) = 2 . 3² - 3
= 2 . 9 - 3
= 18 - 3
= 15
f(- 3) = 2 .(- 3)² - 3
= 2 . 9 - 3
= 18 - 3
= 15
2 A) f (h) = 3x - 1
f (2) = 2 . 3 - 1
= 6 - 1
= 5
f(- 4) = 3 . (- 4) - 1
= - 12 - 1
= - 13
f (p) = 3 .p - 1
7 = 3p - 1
3p = 7 + 1
3p = 8
p =
p = 2