Question

Considere a= √9m, b= 2√100m, c= -8√36m e calcule:
a) a+b+c
b) a-b+c
c)(a+b) -c

Answer 1

a=3, b=2.10=20,. c=-8.6= -48

a) 3+20+(-48)= 23-48= -25
b) 3-20+(-48)=-17-48= -65
c) (3+20)-(-48)= 23+48=71