(3a-b) square - 9c square plz help me answer this.
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2
Answer:
(3a-b)²-9c
(3a-b)(3a-b)-9c
9a+2b-9c.
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Answered by
1
Answer:
(3a-b) ^2 - (9c)^2
9a^2+b^2-6ab-81c^2....
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