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f(-2) = p(-2) +q = 14
= -2p +q = 14
F(3) = p(3) +q = -1
= 3p +q = -1
-2p +q = 14
3p +q = -1 -
-5p = 15
p = -3
-2p +q = 14
-2(-3) +q = 14
6 +q = 14
q = 14 -6
q = 8
f(x) = -3x +8
f(5) = -3(5) +8
= -15 +8
= -7
Itu jawabannya.