Question

The smallest number that should be subtracted from 300 to make it a perfect square​ step by step instructions

Answer 1

Answer:

11

Step-by-step explanation:

First find the square root of 300…

It is 10 times the square root of 3.

If you don’t know the square root of 3 (about 1.7), you know that it’s smaller than the square root of 4, which is 2, and higher than 1.

15*15 = 225, so sqrt(3) is higher than 1.5

16*16 = 2^8 = 256 (number of combinations with 8 bits = 1 byte)

17^2 = ( 15+2)(15+2) = 225 +60 + 4 = 289

18^2 = 9^2 * 4 = 81*2*2= 162*2 = 324

So, the highest square lower than 300 is 17^2

300 - 289 = 11

Answer 2

Answer:

11

Step-by-step explanation:

300-285(300-17)

= 11