Multiply (x-2)(3x+4) using the distributive property select the anwser choice showing the correct anwser A (x-2)(3x)+(3x)(4)

B (x-2)(3x)+(x-2)(4)

C (x)(3x)+4(x)+3x+4

D (x)(3x+4)+(x-2)

Tbh this question has me confused, but I would go with C? If the question is looking for the distributive property, then C may be the way to go.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!