Question

(a) Find the product using suitable identity. (a + 3) (a - 3) (a^2+9) 1​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Hey!! Ur answer:

$(a + 3)(a - 3)( {a}^{2} + 9)1 \\ = ( {a}^{2} - 3a + 3a - 9)( {a}^{2} + 9)1 \\ = ( {a}^{2} - 9)( {a}^{2} + 9)1 \\ = ( {a}^{4} + 9 {a}^{2} - 9 {a}^{2} - 81) 1\\ = {a}^{4} - 81$

Step-by-step explanation:

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