oblicz wartość wyrażenia (√2x-1)(√2x+1) - (√2x-1)^2 + (x-√2)^2
...=(√2x)² -1² - (2x²-2√2x+1)+x²-2√2x+2=
=2x² -1 -2x² + 2√2x -1 +x² -2√2x +2 =
= x²
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
...=(√2x)² -1² - (2x²-2√2x+1)+x²-2√2x+2=
=2x² -1 -2x² + 2√2x -1 +x² -2√2x +2 =
= x²