What is #(-x^2+3x)-(5x+2x^2)#?

2 Answers
Apr 27, 2018

#-3x^2-2x#

Explanation:

Distribute the negative side to the right parentheses so the question becomes
#(-x^2+3x) (-5x-2x^2)# and then combine like terms:

#-x^2-2x^2= -3x^2#

#3x-5x= -2x#

#-3x^2-2x#

Apr 27, 2018

#-3x^2 - 2x#

Explanation:

To simplify this, we first have to distribute the negative sign:
#-(5x+2x^2)# means that you multiply everything inside the parenthesis to the negative sign, or #-1#.

So that becomes #-5x - 2x^2#

Let's put that back into the original expression:
#-x^2 + 3x - 5x - 2x^2#

Now let's color code the like terms so that we can combine them:
#color(red)(-x^2) quadcolor(blue)(+quad3x) quadcolor(blue)(-quad5x) quadcolor(red)(-quad2x^2)#

Combine like terms:
#-3x^2 - 2x#

Hope this helps!