Розділ 1. РАЦІОНАЛЬНІ ВИРАЗИ » 10.14
10.14 Спростіть вираз: 1) 4а–8b7 • 5а10b–3 = 20а2b4; 2) 10m–6n4 • 0,4m6n–9 = 4m0n–5 = 4n–5; 3) 1/3x–4y6 • (–9x5y–3) = –3xy3; 4) (–2/7b–6m–4) • (–11/6b–4m–2) = 1/3b–10m–6.
10.14 Спростіть вираз: 1) 4а–8b7 • 5а10b–3 = 20а2b4; 2) 10m–6n4 • 0,4m6n–9 = 4m0n–5 = 4n–5; 3) 1/3x–4y6 • (–9x5y–3) = –3xy3; 4) (–2/7b–6m–4) • (–11/6b–4m–2) = 1/3b–10m–6.