a+b =
a-b =
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Answered by
1
Answer:
a+b=ab
a-b=-ab
Step-by-step explanation:
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Answered by
1
so the basic formula is a²-b²
by this formula u can derive the other two equations,
a+b=a²-b²/(a+b)
a-b=a²-b²/(a-b)
hope it helps ✌️
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