If a-b=3 and ab =10 find a^2-b^2
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Answered by
10
Solved. See attached image. Ans = 21
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Answered by
2
Answer:
39
Step-by-step explanation:
a2+b2+ab=(a-b)2+3ab , since (a-b)2=a2+b2-2ab
=32+3*10
=9+30
=39
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