а (8а - 14 ) +а (9а - 14)
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8a^2-14a+9a^2-14a
=17a^2-28
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Answer:
a(8a-14)+a(9a-14)
=8a²-14a+9a²-14a
= 8a²+9a²-14a-14a
=17a²-28a.....
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