Question

1/2ab-3/4a(kwadratowe)+3 3/4 ab-1,5a(kwadratowe)+5/8a(kwadratowe) = ???

1,2a-2/3a(kwadratowe)+0,75-1 3/8a-1/2+2/9a(kwadratowe) =???

POMÓŻCIE !

Answer 1

½ab-¾a²+3 ¾ ab-1,5a²+⅝a² = ⅝a²-1,5a²-¾a²+½ab+3 ¾ ab =
= 0,625a²-1,5a²-0,75a²+0,5ab+3,75ab=-1,625a²+4,25ab=
= -⅝a²+4¼ab = 4¼ab-⅝a²

1,2a - ⅔a² + 0,75 -1 3/8a-1/2+2/9a²= 1⅕a - ⅔a² + ¾ -1⅜a-½+²/₉ =
= 1⅕a-1⅜a- ⅔a² + ¾ +²/₉ =1⁸/₄₀a - 1¹⁵/₄₀ a - ⅔a² +²⁷/₃₆+⁸/₃₆ =
=-⁷/₄₀ a - ⅔a²+³⁵/₃₆