Question

solve using suitable identities (x-3)(x-9)​

Answer 1

Answer:

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Answer 2

Answer:

$(x - 3)(x - 9) \\ {x}^{2} - (3 + 9)x + 9 \times 3 \\ using \: identity \: (x - a)(x - b) \\ = {x}^{2} - (a + b)x + ab \\ = {x}^{2} - 12x + 27$