Math, asked by prakash7077, 4 months ago

find the value of (3x+9) (3x-9)

Answers

Answered by ravi2303kumar

1

Answer:

9x² - 81

Step-by-step explanation:

(3x+9) (3x-9)

= (3x)² - 9² ( ∵ (a+b)(a-b) = a²-b²)

= 9x² - 81

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