2) [tex]\sqrt{(13-12)(13+12)}=\sqrt{25}=5[/tex]
3) n
4) 3√(-2)⁶= 3*(-2)³= 3*(-8)= -24
5) 5√7
6) √50=√2*25= 5√2
7) 3√2= √2*3²= √18
8) √9a²b=3a√b
9) 2√c
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2) [tex]\sqrt{(13-12)(13+12)}=\sqrt{25}=5[/tex]
3) n
4) 3√(-2)⁶= 3*(-2)³= 3*(-8)= -24
5) 5√7
6) √50=√2*25= 5√2
7) 3√2= √2*3²= √18
8) √9a²b=3a√b
9) 2√c