Rozłóż wielomian na czynniki (skorzystaj ze wzoru skróconego mnożenia):
(2x + 1)² - 2(2x + 1) +1
Korzystamy ze wzoru:
(a+b)²=a²+2ab+b²
(2x + 1)² - 2(2x + 1) +1=4x²+4x+1-4x-2+1=4x²
(2x + 1)² - 2(2x + 1) +1 = (2x+1)(2x+1-2)+1 = (2x+1)(2x-1)+1 = 4x²+1+1 = 4x²+2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Korzystamy ze wzoru:
(a+b)²=a²+2ab+b²
(2x + 1)² - 2(2x + 1) +1=4x²+4x+1-4x-2+1=4x²
(2x + 1)² - 2(2x + 1) +1 = (2x+1)(2x+1-2)+1 = (2x+1)(2x-1)+1 = 4x²+1+1 = 4x²+2