Sum and Multiply.js

/*
Description:
Write a function that accepts two parameters (sum and multiply) and find two numbers [x, y], where x + y = sum and x * y = multiply.

Example:

sum = 12 and multiply = 32

In this case, x equals 4 and y equals 8.

x = 4

y = 8

Because

x + y = 4 + 8 = 12 = sum

x * y = 4 * 8 = 32 = multiply

The result should be [4, 8].

Note:

0 <= x <= 1000

0 <= y <= 1000

If there is no solution, your function should return null (or None in python).

You should return an array (list in python) containing the two values [x, y] and it should be sorted in ascending order.

One last thing: x and y are integers (no decimals).
*/
var sumAndMultiply = function(sum, multiply) {
   for (let i=0;i<=sum;i++){
     for (let j=0;j<=i;j++){
       if (i+j===sum&&i*j===multiply)
         return [j,i]
      }
    }
    return null
}