1)√13100/169=√100*131/169=10√131/169
2)√1-2√1,96=√1-2√49/25=1-2*7/5=1-14/5=-9/5
3)7/6√48√3=7/6*4√3√3=7/6*4*3=7/6*12=14
4)√0,3*√750=√225=15
5)8,6√2,89+5=43/6*√289/100+5=43/6*17/10+5=731/50+5=981/50=19,62
6)√0,8√0,072=√0,0576=6/25=0,24
7)√96=4√6. √112=4√7
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Answers & Comments
1)√13100/169=√100*131/169=10√131/169
2)√1-2√1,96=√1-2√49/25=1-2*7/5=1-14/5=-9/5
3)7/6√48√3=7/6*4√3√3=7/6*4*3=7/6*12=14
4)√0,3*√750=√225=15
5)8,6√2,89+5=43/6*√289/100+5=43/6*17/10+5=731/50+5=981/50=19,62
6)√0,8√0,072=√0,0576=6/25=0,24
7)√96=4√6. √112=4√7