English, asked by anuradhaanuradha7547, 1 month ago

Find the product of (x+3y) (x-3y)

Answers

Answered by rajspatel566

1

Answer:

(x+3y) (x-3y)

x² - 3xy + 3xy - 9y²

x² - 9y²

shortcut

a²+b² = (a+b) (a-b)

a=x

b=3y

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