Here we go again checking my answer:
-3x (7x^3 -5x^2 +7x -9)

= (-3x*7x^3) - (-3x*-5x^2) +(-3x*7x) - (-3x*-9)
=-21x^4+15x#-21x^2+21x

Thanks for the help! :)

Question

Here we go again checking my answer:
-3x (7x^3 -5x^2 +7x -9)

= (-3x*7x^3) - (-3x*-5x^2) +(-3x*7x) - (-3x*-9)
=-21x^4+15x#-21x^2+21x

Thanks for the help! :)

aroub · Answer

ok its -21x^4+15x^3-21x^2+27x

anonymous · Answer

ok yeah your right, -3*-9 is 27. I got it, I get where it was messed up, thank you!

aroub · Answer

its ok everyone make mistakes ...  no problem anytime :) / and thanks for the medal! :)

anonymous · Answer

its my way of saying thanks. The mistakes that why I am glad I found this site, so I can put my problems up and make sure they are right. I hope it gets me better grades as well. I am sure it will help, I think it has already, do not know my grade for this week yet.

aroub · Answer

i hope u get straight A s !! / u didnt finish school yet ??

anonymous · Answer

No I am in College, I get my Bachelors in 2013.

aroub · Answer

oh ok well good luck in ur exams and everything :)

anonymous · Answer

Thank you! I hope you have a Happy Fourth of July!