The product of two numbers is 161.The sum of their squares is 578.What is the sum of two numbers?
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let the no. be x & y
since, xy=161 and x²+y²=578 , x+ y=?
since,
(x+y)²=x²+y²+2xy
= 578 +2(161)
=578+322
=900
hence, x+y = √900 = 30 ans.
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since, xy=161 and x²+y²=578 , x+ y=?
since,
(x+y)²=x²+y²+2xy
= 578 +2(161)
=578+322
=900
hence, x+y = √900 = 30 ans.
follow my youtube channel
Tej nagpal
& share it with your friends.
tejnagpal:
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