Răspuns:
a)
[tex](-3)^{10} : (-3)^{6}=(-3)^{4}\\\\\sqrt{(-3)^{4} } = (-3)^{2} = 9\\\\\sqrt{576} = 24\\\\\sqrt{144} = 12\\[/tex]
24:12+9 = 11
b) [tex]\sqrt{7*63*25} = \sqrt{7*7*9*25} = \sqrt{7^{2}*3^{2}*5^{2} } = 7*3*5=105\\\\\sqrt{3*(-75)*(-121)}= \sqrt{3*3*5*5*11*11} = 3*5*11=165\\105+(-7)*165= -1050[/tex]
