Question

Difference between a number and its positive square root is 12. Find the numbe

Answer 1

Answer:

16

Step-by-step explanation:

Let the positive number be x according to question,

x+12=x

⇒x=x−12

Squaring both sides,

⇒x=x2−24x+144

x2−25x+144=0

x2−16x−9x+144=0

x(x−16)−9(x−16)=0

(x−9)(x−16)=0

 (x−9)=0 or (x−16)=0

 x=9  or x=16

So, the number is 16.

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