Question

simplify the polynomial
1. 16x^2 + 2 + 2x – 15x^2 – 1 + 14x
a. 31x^2 + 16x + 1
b. x^2 – 12x + 1
c. x^2 + 16x + 1
d. X^2 + 16x + 2

Answer 1

so is it b?

Answer 2

Try again...

Answer 3

d ?

Answer 4

your just guessing.....lets work this out together...
What is 16x^2 - 15x^2 = ?

Answer 5

your wanting to put your like terms together

Answer 6

ok....what is 16 - 15 ?

Answer 7

no i just suck at this haha , but i just tryed to work it out and is it 31x^2 + 16x + 1?

Answer 8

no it isn't

Answer 9

o my god.

Answer 10

let me show you......put your like terms together....put your x^2's together, put your x's together and then put your numbers together...
16x^2 - 15x^2 = 1 x^2 which is the same as x^2
now put x's together..
2x + 14x = 16x
now the numbers..
2 - 1 = 1
Now put down what you have...
x^2 + 16x + 1
Do you understand ? If not, ask questions....you need to learn this.....this is really easy

Answer 11

thanks i understand it alot better now ! can i post the next question and solve it myself and u tell me if its right or not?

Answer 12

The x^2's and the x's stay the same......just the numbers change ...also. don't ever add/subtract an x from an x^2. Just like terms.

Answer 13

you post the next question and I will check it :)

Answer 14

ok 1 sec

Answer 15

3x^2+6-2x+5x-4x^2+9

Answer 16

get your " like " terms together

Answer 17

get your x^2's together, then your x's, then your numbers. Make sure you pay attention to your positive and negative signs

Answer 18

Let me start you off.....
3x^2 - 4x^2 = - 1x^2 which is the same as -x^2
now you do the x's

Answer 19

2x - 5x = 3x

Answer 20

pay attention to your signs...however the answer you got is right...
it should be -2x + 5x = 3x
now do the numbers

Answer 21

thats the only part that confuses me

Answer 22

so what did you get for your answer ?

Answer 23

oh...your confused by the signs ?

Answer 24

yeah ^

Answer 25

quick lesson....
if the signs are the same, whether they are negative or positive, you just add them and keep the same sign.
Example : -2 + (-1) = - 3..........+ 4 + 4 = + 8 or just 8
if the signs are different.....positive and negative, then you subtract and take the sign of the largest number
Example : -3 + 6 = + 3 or just 3........-8 + 7 = - 1
These rules do not apply when multiplying or dividing. Just adding and subtracting.
Any questions ?

Answer 26

then what are the rules for multiplying

Answer 27

rules for multiplying and dividing are :
if the signs are the same, whether negative or positive, then the sign is always positive.
Example : -4 x - 4 = 16.....2 x 6 = 12
if the signs are different positive and negative, then the sign will be negative.
Example : -4 x 5 = - 20.......3 x (-3) = - 9
These are for multiplying and dividing