Вправи: 154

154. Спростіть вираз:

1) 1\2x25x + 3x2- 110x3 = 2x2+ 3x2- 110x3 = 5x2- 110x3;

2) 1\3x4x2y2 – 2\2y6x3y = 3x-4y12x3y2;

3) 5\x5+x + 3x-75+xx = 5x+3x-75+xx = 8x-75+xx;

4) 10x-1x(5-x) – 2\x(5-x) = 10x-1-2xx(5-x) = 8x-1x(5-x);

5) 4y3y+3 + 1-yy+1 = 4y3(y+1) + 1-y\3y+1 = 4y+3-3y3(y+1) = y+33(y+1);

6) 4c\c2c-1 + 2-5c3c2(c-1) = 4c3+ 2- 5c3c2(c-1) = 2-c3c2(c-1).