Question

2x^3-30x^2+108x

Answer 1

Please give explanations and steps, not just answers.

Answer 2

New Hint:

factor out 2x first

Answer 3

aright well i cant find the numbers to add and to multiply and get the same thing

Answer 4

After factoring out the 2x what do you have left to factor further?

Answer 5

2x( ---------------)?

Answer 6

15 and 54

Answer 7

2x(x^2-15x+54) Now notice that the sign of the 54 is positive, but the sign of the 15 is negative. This tells us that both factors of the 54 will be negative and they will combine to form a -15, can you think of two numbers when multiplied equal 54 and when added equal 15???

Answer 8

We know they will be negative, but we don't know what the numbers are? But you can figure it out.

Answer 9

5 and 18

Answer 10

5 times 18 = 90
5 + 18 =23
Not even close, you can do better.

Answer 11

a*b=54
a+b=15 mystery!

Answer 12

Hint 9*6 =54

Answer 13

9and6

Answer 14

yeah got it!

Answer 15

Don't forget to use correct signs!

Answer 16

I gave that hint earlier

Answer 17

thanks

Answer 18

Yes, I think he has got the complete solution now. Thanks for the assist.

Answer 19

2x^3-30x^2+108x
2x(x^2 - 15x + 54)
2x(x^2 - 9x - 6x + 54)

We're not done just yet are we?