Question

!!!!!!!дуже потрібна допомога!!!!!!!!!

Answer 1

$\displaystyle\bf\\7)\\\\5^{2+2\log_{5} 2} =5^{2} \cdot 5^{2\log_{5}2 } =25\cdot 5^{\log_{5} 4}=25\cdot4=100\\\\8)\\\\4^{1+2\log_{4}5 } =4\cdot 4^{2\log_{4}5 } =4\cdot 4^{\log_{4}25 }=4\cdot 25=100\\\\\\9)\\\\\log_{8} 2 +\log_{27}9+\log_{0,5}2 =\frac{1}{3}\log_{2} 2+\frac{2}{3} \log_{3}3-\log_{2} 2=\\\\\\=\frac{1}{3} \cdot 1+\frac{2}{3} \cdot 1-1=\frac{1}{3}+\frac{2}{3}-1=0$