Question

Calcule
A) (+3 a^2) (-9 a^3)
B) 6a^3 (4a^2+2a-6)
C) (3a + B) . (4a^2 - B)
D) (2×+ 6) . (4x + 3)

Answer 1

Explicação passo-a-passo:

A) (+3 a^2) (-9 a^3)

-27a²

B) 6a^3 (4a^2+2a-6)

24a^5 + 12a¯³

C) (3a + B) . (4a^2 - B)

12a³ - 3ab + 4a²b - 2b²