Question

If (x+1)(x+2)(x+3) = 720
then
A) (X+3)
B) 10
which one is greater Option A or Option B...?

Answer 1

option B for whatever you plug in for x, -1 -2 or -3

Answer 2

B is greater

Answer 3

Sorry 3rd option is also there C) two are equal..

Answer 4

Hear it is given that two options are equal

that is x+3=10 i dont know how it is....?

Answer 5

@Callisto (Moderator)

Answer 6

@Zarkon

Answer 7

Well the question is wrong itself, so...

Answer 8

@kc_kennylau

Answer 9

(x+1)(x+2)(x+3) - 720 = 0
Expand and simplify, then try to find a common factor and factorize.

Answer 10

yes that is x^3+6x^2+11x-714=0 then what to do...?

Answer 11

@tyteen4a03

Answer 12

Factorize to get rid of the x^3 term. I am not a factorizer so I use W|A, but you should get something like this: (x - stuff)(x^2 + stuff)

Answer 13

@chetan552 Is there an option C stating that Option A = Option B?

Answer 14

(x+1)(x+2)(x+3) = 720
then
A) (X+3)
B) 10

Why not just let x+3 = 10, then x+2=9 and x+1=8

10*9*8 = 720

Answer 15

Yes option c is also there Two are equal...@Directrix

Answer 16

It is not eassy to guess forother question...@agent0smith

Answer 17

"Why not just let x+3 = 10, then x+2=9 and x+1=8

10*9*8 = 720"

That's a way to check whether 10 is greater x+3 or not. If the 10*9*8 turned out to be less than 720, then it would mean x+3 must have to be greater than 10.

Answer 18

HOw did you get the answer...@Directrix

Answer 19

It's not a guess @chetan552 it's reasoning.

Answer 20

(x+1)(x+2)(x+3) = 1024
then
A) (X+3)
B) 16
which is greater?

Find out. Set x+3 = 16, then x+2 = 15, x+1 = 14

16*15*14 = 3360

so 16 is much larger than x+3

Answer 21

your answer is correct @agent0smith
but how did you say that...

Answer 22

I got it the same way I got the one above. Checking which is bigger.

Answer 23

Thank you i got it.....@agent0smith

Answer 24

(x+1)(x+3)(x+5) = 525
then
A) (X+5)
B) 10
which is greater?

Find out the same way as above...

10*8*6 = 480. So x+5 must be bigger than 10.

Answer 25

your answer is correct @agent0smith
but how did you say that...

Answer 26

The key is to understand that the brackets must be factors of 720.

If (x+1)(x+2) = 12
Then the numbers in parentheses must be factors of 12, right?

Like 1*12 = 12
or 2*6 = 12
or 3*4 = 12

Answer 27

They could also be decimals (usually in questions like the SAT they'll state that they're integers), but either way, they're two numbers that multiply to 12

Answer 28

I got it Thank you.....@agent0smith