" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Aplicamos binomio al cuadrado.
(a + b)² = a² + 2ab + b²
......................................................
L = (3x + 1)² - 9x² - 6x + 9
L = 3x² + 2(3x)(1) + 1² - 9x² - 6x + 9
L = 9x² + 6x + 1 - 9x² - 6x + 9
L = 9x² - 9x² + 6x - 6x + 1 + 9
L = + 1 + 9
L = 10
L=(3x+1)²-9x²-6x+9
L=9x²+6x²+1-9x²-6x+9
Simplificando los términos semejantes -->> 9x²-9x² & 6x²-6x²
==>> L=1+9
L=10