Q.
(2a - 5)(2a - 9) = ....
(2a - 5)(2a - 9) = ....
Ans :
[tex](2a - 5)(2a - 9) \\\\= > 2a\times 2a = 2a^2\\\\= > -2a\times -9 = -18a\\\\= > -5\times2a = 10a\\\\= > -5\times -9 = 45\\\\= 2a^2-18a-10a+45\\\\= 2a^2-28a+45\\\\\boxed{\boxed{Answers\ by\ jemmy}}[/tex]
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