Math, asked by honeybee48, 4 months ago

factorise: 4bsquare - 81

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Answers

Answered by geniusX
1

Answer:

(2b + 9)(2b - 9)

Step-by-step explanation:

= 4b^2 - 81 = (2b)^2 - 9^2 = (2b + 9)(2b - 9)

By, (a + b)(a - b) = a^2 - b^2

=> (2b + 9)(2b - 9)

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Answered by harshabhiraj14
0

Answer:

(2b+9)(2b-9)

Step-by-step explanation:

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