Question

matematica me ajudem​

Answer 1

a) -52a² + 60a² = 8a²

b) 3,9x³ - 5,4x³ = -1,5x³

c) bc - ⅗bc = ⅖vc

d) -9ac + 5,4ac = -3,6ac

e) -xy + ¼xy = -¾xy

f) -21a²x + 16a²x = -5a²x