How do you simplify #(5 + x)(3 - 2x) #?

1 Answer
Haunt
Nov 5, 2015

#-2x^2-7x+15#

Explanation:

To simplify to binomials you multiply each term from one set of parentheses by all the terms in the next. So...
#5*3 = 15#
#5*(-2x) = -10x#

#x*3 = 3x#
#x*(-2x) = -2x^2#

Then you combine all the like terms which in this case is #-10x# and #3x# leaving you with #-2x^2-7x+15# (normally you order by the greatest coefficient)

Related questions
See all questions in Multiplication of Polynomials by Binomials
Impact of this question
1466 views around the world
You can reuse this answer
Creative Commons License