Andrew factored the expression20x^3-12x^2+8x as 4x(5x^2-12x^2+8x) . But when Melissa applied the distributive law and multiplied out4x(5x^2-12x^2+8x) , she got 20x^3-48x^3+32x^2; thus, Andrew’s solution does not appear to check. Why is that? Please help Andrew to understand this better. Explain your reasoning and correctly factor the original expression, if possible. If the expression is prime, so state

Question

turingtest · Answer

Andrew forgot to poll the 4 out of the rest of the numbers...
he only changed the 20...

anonymous · Answer

Hint:  look at the second and third term inside the parenthesis

turingtest · Answer

*pull

anonymous · Answer

Because Andrew forgot to take the common from all the terms.

turingtest · Answer

yeah he forgot the x too
silly Andrew...

anonymous · Answer

We should beat  the **************  out of Andrew, he makes us boys look bad.

anonymous · Answer

nope just you Fool lol

anonymous · Answer

he makes me look smart lol

anonymous · Answer

lol, you do such mistakes?

anonymous · Answer

yeah I know I do but it also should be thought of a medal given to someone who tries to answer the problem

anonymous · Answer

so from what I take of the problem Melissa was correct on her answer for the equation

anonymous · Answer

btw what is a prime expression ?

turingtest · Answer

"good answer"
here is the correct factorization:
20x^3-12x^2+8x=4x(5x^2)-4x(3x)+4x(2)=4x(5x^2-3x+2)

anonymous · Answer

4*12 is 48 4*5is 20 and 4*8 is 32

anonymous · Answer

It looks like she just distributed his factorization to see if it matched the original. which it didn't.

turingtest · Answer

don't forget the x's Sinz, he forgot to pull out the x from each term as well...

anonymous · Answer

right but he also forgot to take his 4 away from the equation which is what Turning just stated as the true equation

turingtest · Answer

Yes, those are the one/two mistakes he made, depending how you look at it.

anonymous · Answer

Okay now I have a better understanding of the problem.

anonymous · Answer

wow, we asked the same question.. are you in my class???

anonymous · Answer

idk what class are you in and what school are you in?

anonymous · Answer

i am taking college algebra at south university

anonymous · Answer

Yeah me too