if x+y=5 and ab=7 . find the value of a^2 + b^2
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Hey dear here is ur answer,
We know that a²+b²=(a+b) ²-2ab
Putting given values,
a²+b²=25-14
a²+b²=11
Hope it will help you
We know that a²+b²=(a+b) ²-2ab
Putting given values,
a²+b²=25-14
a²+b²=11
Hope it will help you
katha02:
i am still not able to understand please help
We have to find out value of a²+b² so we find it hy this formula (a+b) ²-2ab if we solve it we'll find it and we put given values and we find its solution
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