Question

Help with 2 questions

Answer 1

simplify the polynomial.
1. 3x^2 + 6 – 2x + 5x – 4x^2 + 9
–x^2 + 3x + 15
7x^2 + 3x + 3
x^2 – 3x + 15
–x^2 + 7x + 15


2. 2x^2 + 6x – 7x + 8 – 3x^2 + 1
2x^2 + x + 9
–2x^2 – x – 9
–x^2 – x + 9
x^2 + 9

Answer 2

@texaschic101

Answer 3

@satellite73

Answer 4

Hint : Combine Like terms.

Answer 5

3x^2 + 6 – 2x + 5x – 4x^2 + 9

\(3x^2 - 4x^2 + 6 + 9 -2x + 5x\)

Simplify it then,can yo?

Answer 6

@mathslover

Answer 7

@texaschic101

Answer 8

Can you help @Euler271

Answer 9

what mathslover is doing is the correct approach.

you can add the coefficients of the x's of the same order

2x^2 + 3x -2x^2 - 2x = x

Answer 10

coefficients being the number in front

3x^2 - 4x^2 = (3 - 4)x^2

Answer 11

combine you x^2's....then combine your x's...then combine your numbers.....do not try and combine x^2 with x or a number with x^2.....now you try

Answer 12

2x+5x=7x

Answer 13

6+9=15

Answer 14

combining x^2
-x^2

Answer 15

so together it would be –x^2 + 7x + 15

Answer 16

can anybody tell me if this is correct?

Answer 17

then for the second question

Answer 18

-2x+5x= what?

Answer 19

if you have 5 dollars and spend 2 dollars you now have 7 dollars?????

Answer 20

i mean 3x

Answer 21

Then rethink your answer for number 1

Answer 22

–x^2 + 3x + 15

Answer 23

yes

Answer 24

i don't get the second one

Answer 25

I know it is not B

Answer 26

It is the same as the first one....add the like terms

Answer 27

–x^2 – x + 9?

Answer 28

yes. good job

Answer 29

thx!!

Answer 30

yw