Вправи: 655

655. Спростіть вираз:

1) 25m2n12= 5|m||n⁶| = –5mn⁶;

2) 49169m14n18 = 713|m⁷||n⁹| = 713 • m⁷ • (–n⁹) = –713m⁷n⁹;

3) 18xy³64x4y2 = 18xy³ • 8 • |x²||y| = xy³ • x²y = x³y⁴;

4) p6m12x8= p3|m6||x4| = -p3m6x4 = –p3m6x4;

5) 2m⁵ • p20m2 = 2m⁵ • |p10||m| = 2m⁵ • p10-m = –2m⁴p¹⁰;

6) x14y16z26z3y8z12 = x7•y8|z12|x3y8z12 = x7• y8 • (-z13)x3y8z12 = –x⁴z.