Question

Hi, I need help with this Algebra question please.

It's

Subtract 3x² - 2xy + 7y² from -8x²-5xy+9y²

Answer 1

Things with simmilar variables may be subtracted from eachother

so, 3x^2 - (-8x^2)

would be 11x^2 (remember, minus a - is a positive)

keep on doing that for all the rest, and you should get the correct answer.

Answer 2

@nkbxwb hmmm seems you got it mixed up... 3x^2 is subtracted FROM -8x^2 so it's

-8x^2 - 3x^2 and so on..

^_^

Answer 3

if you do this websit for that and ever thing you well do fine mathwayslovetheequation.com

Answer 4

@lgbasallote oops! It's late and its a Monday! aha

Answer 5

Please help me with this question.


Subtract the sum of 2a ²- 3ab + 4b ² and 6a² + 2ab -2b² from 3a²- 2b²

And can you please provide to me an explanation of the steps of what you did first, second and so on? It would help so much.

Answer 6

Ok, for your second question

You must combine the like terms of the first 2 equations,

2a^2-3ab+4b^2
+6a^2+2ab-2b^2

Answer for that is, 8a^2-ab+2b^2

Then you have to subtract terms of the previous equation with 3a^2-2b^2

8a^2-ab+2b^2
-3a^2 -2b^2 <--- no -ab in the bottom equation just carry it down

Answer is, 5a^2-ab

(You should check if I did my math correctly!)

Answer 7

Second opinion please?

Answer 8

http://www.freemathhelp.com/ it will give you the answer

Answer 9

my second opinion would be that it should be 3a^2 -2b^2 -(8a^2 - ab + 2b^2) because the sum is subtracted FROM...

Answer 10

I need help with this question, please,


X ²y (3x²- 2xy + 2y²)

Thank you, Can you please write the steps of how you arrived to the conclusion?

I sincerely appreciate it.

Answer 11

x^2 y? is that the first term?

Answer 12

So I've been trying to use the freemathhelp.com website

And apparently it's still not working. I inserted this equation...
X ²y (3x²- 2xy + 2y²)

But when I hit enter, the message appearing on my screen is that it doesn't recognize the "square"

I tried it with this symbol "^" that didn't work there, what am I doing wrong?

Answer 13

I have no idea what you're doing wrong because when I enter it I get an answer for it. I don't feel like copying it over is going to help you learn anything

Answer 14

are you in the algebra tab? cause if not that could be why it's not working

Answer 15

I need help with 2 radical 2over 2 radical 5 subtracted by radical 2\[2\sqrt{2} \over 2\sqrt{5} -\sqrt{2}\]

Answer 16

The directions are express in simplest radical form.

Answer 17

The second problem I have is