Răspuns:
Explicație pas cu pas:
23
a) [tex]\sqrt{14^{2} }=14[/tex]; [tex]\sqrt{23^{4} } =23^{2} =529[/tex]; [tex]\sqrt{(-35)^{2} } =-35[/tex]; [tex]\sqrt{3^{6} }=3^{3}=27[/tex]; [tex]\sqrt{(-7)^{4} }=(-7)^{2}=49[/tex]; [tex]\sqrt{a^{2} }=a; \sqrt{a^{4} } =a^{2}; \sqrt{(-a)^{8} }=(-a)^{4} ; \sqrt{a^{6} } =a^{3}[/tex]
b)
[tex]\sqrt{2^{4} X3^{2} } =2^{2}X3=4X3=12; \sqrt{16^{2}X5^{2} }=16X5=80; \sqrt{2^{2} X3^{2} X5^{2} }=2X3X5=30; \sqrt{2^{6} X5^{2} X3^{4} }=2^{3}X5X3^{2}=8X5X9=360; \sqrt{18^{2} X3^{4} X2^{6} }=18X3^{2}X2^{3}=18X9X8=162X8=1296; \sqrt{12^{2} X3^{4} X5^{2} }=12X3^{2}X5=12X9X5=108X5=540[/tex]
