Question

Calcule as adições algébricas de radicais
A)√20+√45
B) 4√63-√7
C)√50+√98-√72
D)√12+√75+√108

Answer 1

A) \/20+\/45= \/5.4+\/5.9= 2\/5+3\/5=> 5\/5
B)4\/63-\/7= 4\/7.9-\/7=4.3\/7-\/7=12\/7-\/7=> 11\/7
C) \/2.25+\/2.49-\/2.36= 5\/2+7\/2+6\/2=> 18\/2
D) \/3.4+\/3.25+\/3.36=2\/3+5\/3+6\/3=> 13\/3