Question

Calcule os produtos abaixo

B (3x).(-8x)=
C (-2 x2 y).(7xy)
D (4ab2).(-2abc)
F (1\10ky).(10\7x).(14z)=
G (-3\2ab).(4\9bc).(3\7ac2)
H

Answer 1

B) (3x) . (-8x)
- 24x

C) (-2x^2) . (7xy)
- 14x^3y

D) (4ab^2) . (-2abc)
- 8a^2b^3c

F) (1/10ky) . (10/7x) . (14z)
(10/70kyx) . (14z)
140z/70kyx
2z/kyx

G) (-3/2ab) . (4/9bc) . (3/7ac^2)
(-12/18ab^2c) . (3/7ac^2)
-36/126 a^2 b^2 c^3 (÷2)
-18/63 a^2 b^2 c^3 (÷3)
-6/21 a^2 b^2 c^3 (÷3)
-2/7 a^2 b^2c^3