Вправи: 194

194. Write the monomial in standard form and underline its coefficient.

a) 5x • 6y = 30xy;

б) –3mn • 2m² = –6m³n;

в) 1,5k²p³ • 2k⁴ = 3k⁶p³;

г) –6ac • 0,2a²c³ = –1,2a³c⁴;

ґ) k • (–2kc) • c² = –2k²c³;

д) 3,5m • 3n = 10,5mn;

е) 2,7 • (–0,3)kc = –8,1 kc;

є) 3,2x • 5xy • y⁶ = 16x²y⁷.