Question

Find the continued products.
1. (a + 3) (a – 3) (a? – 9)
2. (5x – 3) (5x + 3) (25x2 + 9)​

Answer 1

Answer:

1) [(a + 3)(a - 3)](a^2 - 9)

=> (a^2 - 9) (a^2 - 9)...................[(a+b)(a-b)=a^2-b^2]

=> (a^2 - 9)^2

=> a^4 + 81 - 18 a^2

=> a^4 - 18 a^2 + 81

2) [(5x – 3) (5x + 3)] (25x^2 + 9)​

=> (25x^2 - 9)(25x^2 + 9)

=> (25x^2)^2 - 9^2

=> 625 x^2 - 81

Hope it helps

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