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sejenis = 3m + 9m & -2n + 15n
t.sejenis = -6
b. 9a^2 -3ab + 4a + 6ab - 18a
sejenis = -3ab + 6ab & +4a - 18a
t.sejenis = 9a²
c. 5x^2 + 6xy - 8y^2 - 2xy + 9y^2
sejenis = +6xy - 2xy & -8y^2 + 9y^2
t.sejenis = 5x^2
d. 8p^2q^2 - p^2q + 12pq + 5pq + 3p^2q
sejenis = -p^2q + 3p^2q & + 12pq + 5pq
t.sejenis = 8p^2q2
e. 5y^2 - 3y + 4y^2 + x^2 - y^2 + y - 1
sejenis = -3y + y & 5y^2 + 4y^2 - y^2
t.sejenis = 1
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