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Scoateţi factorii de sub radicali, apoi efectuați calculele.

[tex] \sqrt{2} + \sqrt{8} [/tex] =
[tex] \sqrt{3} + \sqrt{12} [/tex] =
[tex] \sqrt{5} - \sqrt{20} [/tex] =
[tex]3 \sqrt{2} + \sqrt{18} - \sqrt{32} [/tex] =
[tex]7 \sqrt{3} + \sqrt{27} - \sqrt{48} [/tex] =
[tex] \sqrt{28} + \sqrt{63} - \sqrt{175} [/tex] =


Răspuns :

Răspuns:

/=radical ( nu am radical si pun / in locul lui )

Explicație pas cu pas:

/2+/8=/2+2/2=3/2

/3+/12=/3+2/3=3/3

/5+/20=/5+2/5=3/5

3/2+/18-/32=3/2+3/2-4/2=6/2-4/2=2/2

7/3+/27-/48=7/3+3/3-4/3=10/3-4/3=6/3

/28+/63-/175=2/7+3/7-5/7=5/7-5/7=0