Question

(-2)la a 4a +5\35 : (-1\7)

Answer 1

 $(-2)^4=2^4=16\;\;si\;\;\frac{5}{35}\,\cdot\,\frac{-1}{7}=\frac{\;\;5^{(5}}{35}\cdot(-1)\;=\frac{-1}{7}\cdot\frac{1}{7}=-\frac{1}{49}\\ \\ \Rightarrow\;\;\;16-\frac{1}{49}=\frac{49*16-1}{49}=783/49\;\approx\;16$