Question

a)(+5x).(-4x2)
b)(-2x).(+3x)
c)(2xb).(4x)=
d)(-5x2).(+5xy2)=
e)(-5).(+15xy2)=
​

Answer 1

Resposta:

a) (+5X).(-4x2)=

+10X - 20 =

10X= -20

X= -20/10

X= 2

b) (-2x).(+3x)=

-15X= (-1)

15X

c) (2xb).(4x) =

2xb. 4x

d) (-5x2).(+5xy2)=

-50xy2 = (-1)

50xy2

e) (-5).(+15xy2)=

-75xy2 = (-1)

75xy2