How do you simplify #(2x+1)(x-7)#?

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Answer 1 · 2015-12-14T16:23:20

#color(green)("A slightly different way of looking at how to solve it:")#

#2x^2-13x-7#

Given: #color(brown)((color(blue)(2x+1))(x-7)#

#color(brown)(color(blue)(2x)(x-7)color(blue)(+1)(x-7) #

Consider each part:

#color(brown)(color(blue)(2x)(x-7)) -> 2x^2-14x#

#color(brown)(color(blue)(+1)(x-7)) ->+ x-7#

Putting them together gives:

#2x^2-14x+x-7#

#2x^2-13x-7#