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Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products. (2a^2 + 9) (2a^2 + 5)

Use the identity (x + a) (x + b) = x^2 + (a + b) x + ab to find the following products.
(2a^2 + 9) (2a^2 + 5)

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
8 months ago
Dear Student

(2a^2+ 9) (2a^2+ 5)
= 4a^4+ (9+5)2a^2+ 45
= 4a^4+ 28a^2+ 45

Thanks

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