Question

k

Answer 1

Any ideas where to start?

Answer 2

i think the ones that are right are 1 3 5 and 6

Answer 3

prove it

Answer 4

$$\Huge x^3 + 3x^2 – 10x – 24$$

Answer 5

How would you prove it?

Answer 6

Are you still there @helpineedit ?

Answer 7

If I gave you the number 10 and a list of numbers like 2, 3, 4, 5 and asked you to prove to me which ones are factors of 10?

How would you do it?

Answer 8

i would add it in the equation right?

Answer 9

$$\frac{10}{2}=10\div2=5$$ So 2 is a factor of 10.

$$\frac{10}{3}=10\div3=3 \text{ and remaider 1}$$ So 3 is not a factor because there is a remainder of 1

etc.

Answer 10

Makes sense?

Answer 11

factor: When two or more numbers are multiplied each of the numbers is a factor of the product.

Answer 12

factors: numbers that are multiplied together to produce a product.

Answer 13

2 and 5 are factors of 10 because 2 * 5 = 10.

3 is not a factor of 10 because no integer times 3 equals 10

Answer 14

You should carefully read and fully understand what a factor is as defined above in the the two definitions I gave you @helpineedit ?

Answer 15

$$\Huge\frac{ x^3 + 3x^2 – 10x – 24}{x-1} $$
$$\Huge=( x^3 + 3x^2 – 10x – 24) \div (x-1) $$

Answer 16

ok

Answer 17

If there is no remainder x-1 is a factor, if there is a remainder then it is not a factor.

Answer 18

And of course the same goes for all the rest...

Answer 19

the last one cant right?

Answer 20

Test it and find out for sure.

Answer 21

@helpineedit any questions?

Answer 22

no thnx

Answer 23

Thanks for asking :)