Question

Разложите на множители выражение:

Answer 1

$1)x {}^{2} - 4a {}^{2} \ x {}^{2} - 2 {}^{2} a {}^{2} \ x {}^{2} - (2a) {}^{2} \ (x - 2a) times (x + 2a) \ \ 2) - 15x {}^{2} + 15 \ - 15(x {}^{2} - 1) \ - 15(x - 1) times (x + 1) \ \ 3) frac{a {}^{2} }{25} - frac{c {}^{2} }{49} \ \ frac{1}{1225} times (49a {}^{2} - 1225 times frac{c {}^{2} }{49} ) \ \ frac{1}{1225} times (49a {}^{2} - 25c {}^{2} ) \ \ frac{1}{1225 } times (7a - 5c) times (7a + 5c)$