Question

can someone check this out?

the product of 7 and of a # is 12 greater than 5 times the #, what is the #?

Answer 1

f(2)=3(2)^3 - 4(3)^2 + 2 -1
f(2)=3(8) - 4(9) + 1
f(2)=24 - 36 + 1
Is this what you got so far when you were working out the problem?

Answer 2

\[3x^3 - 4x^2 + x - 1 i get this : 3 (2)^3 - 4 (2)^2 + 2 -1\]

Answer 3

okay, pretty good so far.....

Answer 4

and after that I get , 3 (8) - 4 (4) + 2 - 1 and after I solve it I get 3 as my answer

Answer 5

24 - 16 + 2 - 1
--------------
8 + 2 - 1
--------------
9
How did you get 3?

Answer 6

Because the answer should be 9...

Answer 7

just saw that by mistake i wrote down the wrong numbers.. but thanks could you help me with the other question. with that one i have no idea how to solve it

Answer 8

I am sorry I can't because I have to go, but I will tag someone who can help you, he's REALLY good at math....

Answer 9

okay thanks

Answer 10

PLEASE HELP @SolomonZelman

Answer 11

thanks for your help tho

Answer 12

np ;p

Answer 13

@phi @amistre64

Answer 14

PLEASE HELP HER