Question

Adição algébrica com radicais
a) 3√8-4√16
b) -5.√9+2√169
c)10.3√2+4.3√2-3√2
d) √18+2√50

Answer 1

a) 3√8-4√16
     3*2√2-4*4
     6√2-14

b) -5.√9+2√169
     (-5)*3+2*13
      -15+26= 11

c)10.3√2+4.3√2-3√2
     30√2+12√2-3√2
      39√2

d) √18+2√50
     3√2+2√2
      5√2