(2a2 + 9) (2a2 – 9) Find the suitable identity – InterviewSolution

1.

(2a2 + 9) (2a2 – 9) Find the suitable identity

Answer»

Answer:

2a²(2a²-9)+9(2a²-9)

Step-by-step explanation:

4a⁴-18a²+18a²-81

4a⁴-36a⁴-81

-32-81

-11

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