Question

O resultado da adição e subtracao dos monomios é?
A) -(4x) + (-7x)

B) - (4x) + (-7x)

C) + (4x) + (-7x)

D) + (4x) + (+7x)

Answer 1

a
- ( 4x ) + ( - 7x) =
-4x - 7x = - 11x
b
igual a
c
+ ( 4x ) +  ( - 7x ) =
+4x - 7x = - 3x ***
d
+ ( 4x ) + ( + 7x ) =
+4x + 7x = + 11x ***

Answer 2

A) -4x-7x= -11x

B) -4x-7x= -11x

C) 4x-7x= -3x

D) 4x+7x= 11x