Question

Find all the real zeros of the polynomial. Use the quadratic formula if necessary. P(x) = 2x3 − 14x2 + 8x + 48

Answer 1

well, you can't really factor it nicely

do you know how to do synthetic division? might be a requirement in this case, unless you know how to do derivatives

Answer 2

do u have a graphing calculator?

Answer 3

I have used synthetic division. I've only found one real zero but there is more than one.

Answer 4

i know. theres 3

Answer 5

What is the zero you got? Was it 3?

Answer 6

yes.

Answer 7

The other two zeros are decimals.

Answer 8

once you get past the first number you can use quadratic formula, and get them quickly.

Answer 9

im not getting them.

Answer 10

Do you have a graphing calculator? it will be much easier.

Answer 11

I'm sorry. I mean to rephrase that. I am getting the decimals. I just need them in fraction form.

Answer 12

what are the decimals? im too lazy to solve it lol

Answer 13

-1.46 and 5.46

Answer 14

multiply both by 100 and divide by 100

-1.46 would become -146/100

5.46 would become 546/100

Answer 15

its the same thought like if you have .5, which is known to be a half.

multiply top and bottom by 10.

you have 5/10, or 1/2, which is equal to .5

Answer 16

thank you!