Question

(6/11x) totul la puterea 2-49y la puterea 2
VA ROOOG ​

Answer 1

$( \frac{6}{11x} ) {}^{2} - 49y {}^{2} = \\ ( \frac{6}{11x} ) {}^{2} - 7 {}^{2} y {}^{2} = \\ ( \frac{6}{11x} ) {}^{2} - (7y) {}^{2} = \\ ( \frac{6}{11x} ) {}^{2} - 7y)( \frac{6}{11x} + 7y)$