Вправи: 434

434. Виконайте дію:

1) 23p – 49p = 6-49p = 29p;

2) 7x212m + x2m = 7x2+ 12x212m = 19x212m;

3) 3x-2y12 + y+x6 = 3x-2y+2y+2x12 = 5x12;

4) 3x+b6 – 4a-b8 = 43a+b- 3(4a-b)24 = 7b24;

5) 1p2 – p-2p3 = p-p+2p3 = 2p3;

6) 4a+b2a – 6b-a3b = 3b4a+b- 2a(6b-a)6ab = 12ab+3b2- 12ab+2a26ab = 2a2+ 3b26ab.