(3x + 7y)(3x - 7y)
Answers
Answered by
2
Answer:
9x^2-49y
Step-by-step explanation:
Answered by
9
Step-by-step explanation:
we know that =>
(a+b) (a-b) = a^2 - b^2
Similarly
(3x + 7y)(3x - 7y)
9x^2 - 49y^2
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