Question

Divide 18 into two parts such that sum of their squares is 193.​​​​​

Answer 1

let the 2 parts be x añd y

x²+y²=193

x+y=18

now x=(18-y)

substitute the value of x in first equation

we get....324+y²-648y+y²=193

now solve on your own

and then put the value of y in x=(18-y)

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