Question

add
(4x^2-6xy+y^2)+(-8x^2-3xy-y^2)+(X^2+xy-8y^2)

Answer 1

Combine all your like terms

Answer 2

\[(4x^2-6xy+y^2)+(-8x^2-3xy-y^2)+(x^2+xy-8y^2)\]
\[=4x^2-6xy+y^2-8x^2-3xy-y^2+x^2+xy-8y^2\]
Collect like terms now.

Answer 3

13^2-10^2+10 is this correct?

Answer 4

Not quite. Try again.

Answer 5

Why is there 10 when there were no constants in that equation?

Answer 6

and why is there 10^2?

Answer 7

Don't forget to put your variables in (x^2, etc)

Answer 8

im sorry it was supposed to be 10xy

Answer 9

Could you show us your renewed answer @channie2003

Answer 10

You still need to re-check your answer - the answer you gave above is incorrect

Answer 11

13^2-10^2+10xy this is what i keep getting

Answer 12

First look at the coefficients of x^2 and what do you get?

Answer 13

What's 4-8+1=?

Answer 14

That's the coefficients of x^2 right?

Answer 15

\[4x^2-8x^2+1x^2=?\]

Answer 16

-5x^2

Answer 17

What about the -8x^2? The 4 and 1 are positive.

Answer 18

im getting -3

Answer 19

And wouldn't that be correct when you're using your basics of subtraction and addition of numbers?

Answer 20

Continue doing the same as you got the -3 with the other terms. Don't forget the variables such as x^2 aand so on.

Answer 21

yeah im sorry i think ive been doing this for about 6 hrs tonight:) im a little lost

Answer 22

Doing too much of something is not a good thing. You rather do about 1-2 hours a day. Don't overdo it or you will forget everything you just did. It will be too mechanical.

Answer 23

Have a rest or something. Go outside and do something else.

Answer 24

i know its just ive been struggling to not fail this class so im on my last few questions

Answer 25

would the correct answer be -3^2-8y^2-37

Answer 26

37?

Answer 27

i didnt finish my last sentence my assignment is due today and ive been working on them all week

Answer 28

yea im not qetting a power at all

Answer 29

You got two thirds of it right. You only need the xy. Collect your like terms for xy again.

Answer 30

The first term would be: 4x^2 -8x^2 +x^2. This would give you the -3x^2. Now do this same procedure with the other terms. The -3 that you got was correct but you need to have it with the x^2. Your -37 is incorrect.

Answer 31

the next one would be +1-1-8 all with y^2 right?

Answer 32

Right

Answer 33

i get -8y^2

Answer 34

Correct

Answer 35

then last xy +1-3-6 and i got -2xy

Answer 36

Try adding those again - you got the right coefficients but the wrong answer

Answer 37

-8 is what i get when i do it in order

Answer 38

Correct. Now it looks like you got the entire answer

Answer 39

om gosh thank you!

Answer 40

You're welcome

Answer 41

i have been struggling so bad

Answer 42

Don't worry. Just don't give up and keep at it. With practice you'll do just fine.

Answer 43

thank you