Question

The sum of a number and its positive square root is 6/25 find the number

Answer 1

here's ur answer :-)

x+sqrt(x)=6/25

x+sqrt(x)=6/25

sqrt(x)=y

y2+y−6/25=0

=>y=(−1+/−sqrt(1+24/25))/2

=>y=−1/2+/−sqrt(49/25)/2

=>y=−1/2+/−7/10

y=−5/10+7/10=1/5y=−5/10+7/10=1/5 and 

y=−5/10–7/10=−12/10=−6/5

But y cannot be negative, so y=1/5

=> x=1/25

The number is 1/25.

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