What number should be added to both sides of the equation to complete the square

xsquared2-10x=7

subtract 2 from each side and o think u decide the last two numbers

Step-by-step explanation:2-10x=7

First you have to subtract you 2 on both sides so it would 7-2 = 5

You are left with - 10x = 5

Then you divide your - 10x by - 10 to get rid of your x

Last you divide 5/-10