How do you simplify #(5 – 2x)(x + 3) times (x + 7)#?

Question

1643 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-06-18T10:22:54

Expand the brackets first

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

#5x+15-2x^2-6x#

#15-2x^2-x#

Now multiply this by #(x+7)#

#15x-2x^3-x^2+105-14x^2-7x#

#-2x^3-15x^2+8x+105#