Question

Evaluate each polynomial for x = 3 and for x = −3.
−x^2 − 3x^3 − x^4

Answer 1

Plug in x to be 3 and see what you get.. then plug in -3 and see what you get.

Answer 2

okay so far this is what I got (-3*-3) - 3(-3*-3*-3) - (-3*-3*-3*-3)
9 - -81 - 81 = 153

Answer 3

that was for -3

Answer 4

For -3, you should get -9

Answer 5

3^2 - 3(3^3) - 3^4 is that right so far

Answer 6

Well maybe i did something wrong.. Just a sec.

Answer 7

3*3 - 3*3*3*3*3 - 3*3*3*3= -315

Answer 8

No,, for x=-3 you should get -9

Answer 9

okay got that one

Answer 10

You have.. - 3*3 - 3*3*3*3 - 3*3*3*3

Answer 11

the one I just posted is for 3

Answer 12

For x = 3 you should get -171

Answer 13

okay so if I plug in -3*-3 then it should come out to -171

Answer 14

If you plug in 3 you get -171

Answer 15

it its -3 then you get -9

Answer 16

how come then when I do it on the calculator it comes out to be -315

Answer 17

Your not doing the parenthesis right.. type it in like this\[(3)^2 - 3(3)^3 - (3)^4\]

Answer 18

okay tell me if I am doing this right
3*3=9
3*3*3=27*3=81
3*3*3*3=81 right

Answer 19

9-81-81 = 153

Answer 20

-(3*3) - 3*3*3*3 - 3*3*3*#

Answer 21

okay forgot the -

Answer 22

-9 - 81 - 81

Answer 23

okay now I got it thank you