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x^2 +px+8=0 Sum of roots =a+b= - p Product of roots = a*b=8/1 Difference of roots =2 Let a&b are roots (a+b) ^2 =((a-b) ^2 +4ab (-p)^2 =2^2 +4*8 p^2 =4+32 p^2 =36 P=6
ShaileshVerma:
I have written same thing brother... What you have written is read as square root of 18...
how is a+b=-p/2
I answered that from my mobile and square root symbol is not there in keys so I wrote in words. ☺️...
It's a proven result that
but how is a+b p/2
For any general polynomial
brother a+b is -p
not -p/2
Ohhh I mixed another problem with this one... Sorry for that
You are right
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