35.14. 1) (3x + 4y) - (4y - 3x)2 = 48xy;
2) (1,5x – 2y)2 + (2x + 1,5y) = 6,25 (x + y^);
3) (2a - 36)-(2a + 3b)3 = -186(4a² + 36%);
4) (3a - 26)3 + (3a +26) = 18a(3a² +46).​