(x + 5)2 – (x–5)2 – 20x?
(x + 5)2 – (x–5)2 – 20x.
7Normmys57
(x + 5)2 – (x–5)2 – 20x.
En resumen
Seria : (x + 5)2 – (x–5)2 – 20x x2 + 2(x)(5) + 5 al cuadrado - x2 - 2(x)(5) + 5al cuadrado - 20x x2 + 10x + 25 - (x2 - 10x + 25) - 20x x2 + 10x + 25 - x2 + 10x - 25 - 20x 20x - 20x 0.
Lala15256
Seria :
(x + 5)2 – (x–5)2 – 20x
x2 + 2(x)(5) + 5 al cuadrado - x2 - 2(x)(5) + 5al cuadrado - 20x
x2 + 10x + 25 - (x2 - 10x + 25) - 20x
x2 + 10x + 25 - x2 + 10x - 25 - 20x
20x - 20x
0.