Question

a²-81(b-c)² please help me

Answer 1

here is your answer
${a}^{2} - 81(b - c {)}^{2} \\ {a}^{2} - (9b - 9c {)}^{2} \\ using \: identity \: {a}^{2} - {b}^{2} = \\ (a + b)(a - b) \\ \\ (a +( 9b - 9c))(a - (9b - 9c)) \\( a + 9b - 9c)(a - 9b + 9c)$
hope this helps you
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Answer 2

Answer:

hey buddy here is ur answer ....

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