Question

2x^3 - 30x^2 + 100x = 0 ??

Answer 1

helloo

Answer 2

@KingGeorge

Answer 3

@chrisplusian @Ashleyisakitty @brazukinhaa

Answer 4

Whenever you factor you always look for a greatest common factor to begin with. Do you see one?

Answer 5

okay i got that

Answer 6

is taht it?

Answer 7

@Directrix

Answer 8

then you have to find a two numbers that multipy to be the last term....50.... and add to be the center term.....-15 so:
2x(x-10)(x-5)

Answer 9

@chrisplusian is that the final answer

Answer 10

did you understand where that came from?

Answer 11

yeah

Answer 12

YOu can always foil it out to be sure :)

Answer 13

But that should be correct

Answer 14

but that is the correct final answer?

Answer 15

no more simplifying ?

Answer 16

What are the instructions? You could do a whole lot with that equation but you didn't post anything other than the equation.

Answer 17

If you are trying to find what makes it equal to zero you set each factor equal to zero then solve which would give you x=0, x=5, and x=10

Answer 18

it says solve for x by factoring, why i was coonfuzed was because i got multiple answeres for x

Answer 19

That is correct if you plug x=0 in the first term would be 2(0). That would be a zero times the other two factors. Anything times zero is zero so that would make it a true statement. Then if you plug x=10 in to the center factor it would be 10-10 which would again be zero meaning that it is multiplication by zero which in the end is zero. And last if you put x=5 into the last factor it gives you 5-5 which again is multiplication by zero. Can you see that?