if a+b=5 and ab=4 then a2+b2=
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Answered by
5
Answer:
a²+b²=(a+b) ²-2ab
=(5)²-2×4
=25-8
=17
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Answered by
2
Answer:
a²+b²=(a+b)²-2ab
a²+b²=(5)²-2×4
a²+b²=25-8
a²+b²=17
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