Simplify each polynomial 3a^2 - 2a - 4 + 2a -3a^2 + 5

3a² - 2a - 4 + 2a -3a² + 5

Put all the like terms together

= 3a² -3a² + 2a - 2a + 5 - 4

Combine like terms

= 1

1

Let's add all alike terms separately.

3a²+(-3a²)= 0; cancels out.

-2a+2a= 0; cancels out.

-4+5= 1

So, the answer is 1.

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

-6 is the correct option from the above given options