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p+q = -b/a = 2
p.q = c/a = 5
akar yg baru
α = p+2
β = q+2
α+β = p+2+q+2
= p+q+4
= 2+4
= 6
α.β = (p+2)(q+2)
= pq+2p+2q+4
= pq+2(p+q)+4
= 5+2.2+4
= 13
persamaan kuadrat
x²-(α+β)x+(αβ) = 0
x²-6x+13 = 0
semoga membantu ya :)