1.

(2a ²+9) (2a²+5)Please answer quick​

Answer»

ANSWER:

(2a^2+9) (2a^2+5)

=4a^2 +2a^2 ×5 + 2a^2 ×9 + 9×5

=4a^2 +10a^2 +18a^2 +45

=4a^2 +28a^2 +45

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