" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x²-(x+3)²=27
teraz liczymy:
x²-(x²+6x+9)=27
x²-x²-6x-9=27
-6x=36 |:(-6)
x=-6
nasza liczba to -6
x²-(x²+6x+9)=27
x²-x²-6x-9=27
-6x=36 |: (-6)
x=-6
x - pewna liczba
x² - (x+3)² = 27
x² - (x+3)(x+3) = 27
x² - x² + 3x + 3x + 9 = 27
6x + 9 = 27
6x = 27-9
6x = 18 /6
x = 3