How do you find the coeffient of x in the expression of ( 3x-2) (5x+2)?

1 Answer
Aviv S.
Feb 19, 2018

The coefficient of #x# is #-4#.

Explanation:

Use the distributive property (sometimes called FOIL in this case):

#color(white)=(3x-2)(5x+2)#

#=(3x*5x)+(3x*2)+(-2*5x)+(-2*2)#

#=15x^2+6x-10x-4#

#=15x^2-4x-4#

The coefficient of #x# is #-4#.

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