Factor the expression 2x^3-3x^2-5x

x(2x-5)(x+1)

Step-by-step explanation:

1. First factor out the x of all the numbers to get x( 2x^2 -3x -5)

2. To factor, I used cross multiplying- (Sorry but I don't know how to explain it)

3. You're done!

(Sorry if it isn't amazing)

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!