If a - b = 5, a^2+ b^2 = 49, find the value of ab.
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Answered by
6
Step-by-step explanation:
a-b=5
squaring both sides
a^2+b^2-2ab=25
=49-2ab=25
=-2ab=25-49
=-2ab=-24
=ab=12
Answered by
1
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