1-3x-3y-4 (x+y)^2

Asked by 983949361761156 | 13th Mar, 2018, 06:10: AM

Expert Answer:

begin mathsize 16px style 1 minus 3 straight x minus 3 straight y minus 4 left parenthesis straight x plus straight y right parenthesis squared
equals 4 minus 3 minus 3 straight x minus 3 straight y minus 4 left parenthesis straight x plus straight y right parenthesis squared
equals 4 minus 4 left parenthesis straight x plus straight y right parenthesis squared minus 3 minus 3 straight x minus 3 straight y
equals 4 left square bracket 1 minus left parenthesis straight x plus straight y right parenthesis squared right square bracket minus 3 left parenthesis 1 plus straight x plus straight y right parenthesis
equals 4 left square bracket 1 squared minus left parenthesis straight x plus straight y right parenthesis squared right square bracket minus 3 left parenthesis 1 plus straight x plus straight y right parenthesis
equals 4 left square bracket left parenthesis 1 minus straight x minus straight y right parenthesis left parenthesis 1 plus straight x plus straight y right parenthesis right square bracket minus 3 left parenthesis 1 plus straight x plus straight y right parenthesis
equals left parenthesis 1 plus straight x plus straight y right parenthesis left square bracket 4 left parenthesis 1 minus straight x minus straight y right parenthesis minus 3 right square bracket
equals left parenthesis 1 plus straight x plus straight y right parenthesis left parenthesis 4 minus 4 straight x minus 4 straight y minus 3 right square bracket
equals left parenthesis 1 plus straight x plus straight y right parenthesis left parenthesis 1 minus 4 straight x minus 4 straight y right parenthesis end style

Answered by Rashmi Khot | 13th Mar, 2018, 08:51: AM