Question

Упростите выражение: а) 14t (1,5t^2 – 2d) – 8t (t2 – 1,5d); б) (3m - 1)(m +2) – (m +3)(2m - 2)

Answer 1

Объяснение:

а) 14t*(1.5t² - 2d) - 8t*(t² - 1.5d) = 21t³ - 28td - 8t³ + 12td = 13t³ - 16td

б) = 3m² - m + 6m - 2 - 2m² + 2m - 6m + 6 = m² + m + 4