Posted by Anonymous on Tuesday, January 11, 2011 at 10:12pm.
Can you check my answer and the work? Thank youu~~
(2xy)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
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