Question

4 задание 26²-12²
54²-16².

Answer 1

$\frac{26^{2}-12^{2} }{54^{2}-16^{2} } =\frac{(26-12)*(26+12)}{(27*2)^{2}-2^{8} } =\frac{532}{(27^{2}-2^{6})*2^{2} } = \frac{532}{665*2^{2} } =\frac{4}{5*2^{2} }=\frac{2^{2} }{5*2^{2} } =\frac{1}{5} =0,2$