Question

What positive number is twice it's own square

Answer 1

The answer is 4. The square root of 4 is equal to 2, and 4 is twice the amount of 2. Therefore, the answer is 4.

Answer 2

Answer: The positive number is
`(1)/(2).`

Step-by-step explanation: We are given to find the positive number that is twice it's own square.

Let x denotes the required number.

Then, according to the given information, we have

`x=2x^2\\\\\Rightarrow 2x^2-x=0\\\\\Rightarrow x(2x-1)=0\\\\\Rightarrow x=0,~~2x-1=0\\\\\Rightarrow x=0,~(1)/(2).`

Sine 0 is not considered as a positive number, so the required positive number is
`(1)/(2).`

Thus, the positive number is
`(1)/(2).`