Question

1.Calcule os produtos algébricos:a)2(a + 4)
b)5(2a –1)
c)–4(2x –3)
d)10(3a –2b + 1)
e)3(x + 2) + 2(2x –1) + 1
f)5(x + 2y –1) –3(2x –y + 1) –(x + 2)

Answer 1

a) 2(a + 4) = 2a+8

b) 5(2a –1) = 10a-5

c) -4(2x –3) = -8x+12

d) 10(3a –2b + 1) = 30a-20b+10

e) 3(x + 2) + 2(2x –1) + 1 = 3x+6+4x-2+1 = 7x+5

f) 5(x + 2y –1) –3(2x –y + 1) –(x + 2) =

5x+10y-5-6x+3y-3-x-2

5x-6x-x+10y+3y-5-3-2

-2x+13y-10

❤️❤️ Boa noite

09/09