" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
5 3/4 + 2 4/9 * ( - 9/11 ) =5¾+²²/₉*(-⁹/₁₁)=5¾-2=3¾
Uprość wyrażenia:
1. ( 2x - 3y )² - 2 ( x² - 4xy)=4x²-12xy+9y²-2x²+8xy=2x²+9y²-4xy
2. ( √3 + a ) ( √ 3 - a ) +2 ( a +2 )² - 3 ( 3a - 4 )=
3-a²+2(a²+4a+4)-6a+12=3-a²+2a²+8a+8-6a+12=a²+2a+23