Question

USE A SUITABLE IDENTITY TO SOLVE :- (2a²+9) (2a²+5)

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Answer 1

Answer:

Using identity=(x+a)(x+b)=x²+(a+b)x+ab

===(2a²+9)(2a²+5)=(2a²)²+(9+5)2a²+9*5

============4a⁴+28a²+45

Hence answer is

4a⁴+28a²+45,◉‿◉◉‿◉