(7x+3y) (7x-3y) tell the answer
Answers
Answered by
5
Answer:
= 49x^2 - 9y^2
Step-by-step explanation:
= (7x+3y) (7x-3y)
= 7x (7x-3y) + 3y (7x -3y)
= 49x^2 - 21xy + 21xy - 9y^2
= 49x^2 - 9y^2
Answered by
1
Answer :-
• (7x + 3y) (7x - 3y)
=> (7x)² - (3y)²
=> 49x² - 9y²
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