Question

3)
Calcule as expressões:
a) 2mn + 14mn + 5mn =
b) 2,5 xy + 1,5xy - 0,5xy =
c)
32cd3-2cd3 + 52cd) =
d) 2x - 3x2 -5x + 7x +3 -3=​

Answer 1

a) 2mn+14mn+5mn = 21mn

b) 2,5xy+1,5xy-0,5xy = 3,5xy

c) 32cd³-2cd³+53cd³ = 82cd³

d) 2x-3x²-5x+7x+3-3 = -3x²+4x

❤️ Boa tarde ✨

10/05