Salut
1) a) f(-1) = 2(-1)²-5(-1)+7 = 14
b) g(3) = 7(3)+9 = 30
c) f(3) = 2(3²)-5(3)+7 = 10
d) g(-3) = 7(-3)+9 = -12
2) a) h(-2) = -3
b) h(-1) = 2
c) -4
d) -2
3) a) k(-1) = 2
b) 0
c) 1
d) k(1) = 0
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Salut
1) a) f(-1) = 2(-1)²-5(-1)+7 = 14
b) g(3) = 7(3)+9 = 30
c) f(3) = 2(3²)-5(3)+7 = 10
d) g(-3) = 7(-3)+9 = -12
2) a) h(-2) = -3
b) h(-1) = 2
c) -4
d) -2
3) a) k(-1) = 2
b) 0
c) 1
d) k(1) = 0