Question

(x+1)²+2x=3x(x+1)+5

hallar la suma de raíces

Answer 1

Dearrollando

x² + 2x + 1 + 2x = 3x² + 3x + 5
x² + 4x +1 = 3x² + 3x + 5
0 = 3x² - x² +3x-4x + 5 - 1
0 = 2x² - x + 4

a = 2 , b = -1 , c = 4
la suma de sus raíces es:
-b/a = -(-1)/2 = 1/2      Rptaaaaaaaaaaaaaaa