Вправи: 150 (1-5)

150. Спростіть вираз:

1) 2\25x + 310x = 4+310x = 710x;

2) 53a + 56a = 10+56a = 156a = 52a;

3) 5\312c + 7\49c = 15+2536c = 4336c;

4) 3x\3x+2 + 2x3(x+2) = 9x+2x3(x+2) = 11x3(x+2);

5) y5(y+1) + 2y\5y+1 = y+10y5(y+1) = 11y5(y+1);

6) 3c\32(c-1) + 2c\23(c-1) = 9c+4c9(c-1) = 13c6(c-1);

7) 1\26x – 512x = 2-512x = –312x = –14x;

8) 13\315c – 5\59c = 39-2545c = 1445c;

9) 2a\5x+2 – 4a5(x+2) = 10a-4a5(x+2) = 6a5(x+2);

10) c3(y-1) – 6c\3y-1 = c-18c3(y-1) = -17c3(y-1).