Question

Efectúa
a) -2 √7 + 5 √7 - 8 √7 + 3 √7 - 5 √7 + 7 √7
b) 1/3 √2 - 2 √2 + 7 √2 - 1/ 6 √2
c) 5 √11 - 3 √17 - 4 √11 - 9 √11 + 8 √17

AYUDA URGENTE....POR FAVOR!!!!!

Answer 1

a. (-2+5-8+3-5+7)Г7= (-15+15)Г7= 0

b.(1/3+7-2-1/6)Г7=*6= (2+42-12-1)Г7=31Г7

c.(5-4-9)Г11 + (-3+8)Г17= -8Г11 + 5Г17