Answer :
We start with the expression
[tex]$$
19x^3 + (14x + 4x^3).
$$[/tex]
First, remove the parentheses to obtain
[tex]$$
19x^3 + 14x + 4x^3.
$$[/tex]
Next, combine the like terms. Notice that the terms with [tex]$x^3$[/tex] are [tex]$19x^3$[/tex] and [tex]$4x^3$[/tex]. Adding these together gives
[tex]$$
19x^3 + 4x^3 = (19+4)x^3 = 23x^3.
$$[/tex]
The term [tex]$14x$[/tex] remains unchanged. Therefore, the simplified expression is
[tex]$$
23x^3 + 14x.
$$[/tex]
This corresponds to option D.
[tex]$$
19x^3 + (14x + 4x^3).
$$[/tex]
First, remove the parentheses to obtain
[tex]$$
19x^3 + 14x + 4x^3.
$$[/tex]
Next, combine the like terms. Notice that the terms with [tex]$x^3$[/tex] are [tex]$19x^3$[/tex] and [tex]$4x^3$[/tex]. Adding these together gives
[tex]$$
19x^3 + 4x^3 = (19+4)x^3 = 23x^3.
$$[/tex]
The term [tex]$14x$[/tex] remains unchanged. Therefore, the simplified expression is
[tex]$$
23x^3 + 14x.
$$[/tex]
This corresponds to option D.
