Posted by **Anonymous** on Tuesday, January 11, 2011 at 10:12pm.

Can you check my answer and the work? Thank youu~~

(2x-y)7

128x7 -448x6y -672x5y2 -560x4y3 -280x3y4 -84x2y5 -14xy6 -y7

orr

128x7 -448x6y +672x5y2 - 560x4y3 +280x3y4 -84x2y5 +14xy6 -y7

Ps: the 7 in the equation is the exponent and the numbers after the variable are also the exponent

- Algebra 2 -
**helper**, Tuesday, January 11, 2011 at 10:25pm
+ 672x^5y^2 - 280x^3y^4 + 14xy^6

only the signs were wrong for the above

corrections

I used an online calculator to expand so I know it's right

- Algebra 2 -
**Anonymous**, Tuesday, January 11, 2011 at 10:29pm
so is it this?

128x7 -448x6y +672x5y2 - 560x4y3 +280x3y4 -84x2y5 +14xy6 -y7

or

128x7 -448x6y +672x5y2 -280x3y4 +14xy6

?

- Algebra 2 -
**helper**, Tuesday, January 11, 2011 at 10:32pm
sorry, I didn't see your 2nd line after

"or", so the correction applies to your first line/answer

- Algebra 2 -
**Anonymous**, Tuesday, January 11, 2011 at 10:34pm
k thank youuu~~~ =)

- Algebra 2 -
**helper**, Tuesday, January 11, 2011 at 10:40pm
you're welcome

## Answer this Question

## Related Questions

- algebra again - solveee? 3x+2y-6=0 ? thank youu?! (:
- Algebra - - ok... we keep getting this one wrong: Solve the following equation ...
- Algebra - I am having issues with factoring. I am trying to check my work using ...
- Algebra - Hello, can someone tell me if I got the following solve and check work...
- algebra (check work) - evaluate the expression when a = , b = -3, c = -12 |a + b...
- algebra - Will someone check my work here and let me know if I am right. Thanks...
- algebra - i have two answers to this problem so am not sure which way I need to ...
- Algebra - Hiya. I have 7 expressions that I have been asked to simplify. I ...
- Algebra 1 - I need to factor the expression t^2 + 4tv + 4v^2 I got this answer...
- MATh (check my answer please) - A salesperson makes a flat fee of $20 per day ...

More Related Questions