(7x+3y) (7x-3y)
please send me a answer
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Answered by
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Answer:
7x²-19yx-9y²
Step-by-step explanation:
= 7x(7x-3y)+3y(7x-3y)
= 7x²-21yx+2yx-9y²
= 7x²-19yx-9y²
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