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Daann4ik

√230= √5*23*2= Не могу разложить

√189
=√21*9=3√21

√126
=√14*9=3√14

√108
=√4*27=2√27=2√3*3*3=6√3

√78
=√13*6= Не могу разложить

√207=
√23*9=3√23

√423
=√9*47=3√47

√128=√32*4=2√32=2√4*8=4√8=4√2*2*2=8√2

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