Question

Rastrangeti factorii dupa ce i.ati scos de sub radical
a) 2√5-2√12
b) 4√7-√28+√7
c)-√27+3√3
d)6√2+2√32-6√8
Va rog ajutati.ma urgentt

Answer 1

a) 2√3-2√12=2√3-2x2√3=2√3-4√3=-2√3
b)4√7-√28+√7=4√7-2√7+√7=3√7
c)-√27+3√3=-3√3+3√3=0
d)6√2+2√32-6√8=6√2+8√2-12√2=14√2-12√2=2√2