Yo imma help u out use Socratic app it’s the best
I believe you are expected to simplify. To do this all you do is group like terms (x, x², x³ etc.) and then simplify the coefficients.
13. 10z + 7z - 19z² - 5z² - 17z
first you can rearrange and group like terms (remember the bring the sign in front of each term with it). I would do it like this:
-19z² - 5z² +10z + 7z - 17z
Now simplify the coefficients:
-24z² + 0z
you can omit the 0z and your simplified answer is
-24z²
Main thing to remember here is that z and z² cannot be simplified together, nor can any variable that has an exponent because the exponent makes them differ.
Carly sold 18, Jasmine sold half that. Half of 18 is 9. 9 + 18 = 27.
Together they sold 27 rolls of wrapping paper.
4(2x5 + 3) - 4(2) + 2(5).
4(13) - 18.
52-18 = 34.