Question

Find each difference in the photo below

Answer 1

Answer:

$= - 2 x^{3} + 4x -8$

Step-by-step explanation:

The first step is to open the parenthesis,

Since there is a negative sign before the second parenthesis, so the sign of all the values in second parenthesis will be changed and the equation will look something like this

$= 2x^{3} + 4x -2 - 4 x^{3} + 6$

The second step is to re arrange the equation

$= 2x^{3} - 4 x^{3} + 4x - 2 + 6$

The last and final step is to solve the equation

$= - 2 x^{3} + 4x -8$

This is our answer

Answer 2

Answer:

The difference is -2x³ + 4x + 4.

Step-by-step explanation:

Subtract the two expression as follows:

$(2x^{3}+4x-2)-(4x^{3}-6)=2x^{3}+4x-2-4x^{3}+6$

Combine the like terms together:

                                         $=2x^{3}-4x^{3}+4x-2+6$

Simplify as follows:

                                         $=-2x^{3}+4x+4$

Thus, the difference is -2x³ + 4x + 4.