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f(2) = 2(2)^2 - 3(2) + 1
f(2) = 8 - 6 + 1
f(2) = 3
f(-3) = 2(-3)^2 - 3(-3) +1
f(-3) = 18 + 9 + 1
f(-3) = 28
Faktorkan menjadi f(x) = (2x - 1)(x - 1)
f(2) = (2-1)(2(2) - 1)
= (1)(3)
= 3
f(-3) = (-3-1)(2(-3)-1)
= (-4)(-7)
= 28
semogamembantu ya kalau boleh jadikan terbaik ya^_^