+193 Simplify the following:
$(2y-1)\cdot(4y^{10}+2y^9+4y^8+2y^7).$
Express your answer as a polynomial with the degrees of the terms in decreasing order.
+592 (2y - 1)(4y10 + 2y9 + 4y8 + 2y7)
= 8y11 + 4y10 + 8y9 + 4y8 - 4y10 - 2y9 - 4y8 -2y7
= 8y11 + 6y9 - 2y7
+193 I'm actually helping someone else do their homework. I don't want to give them the wrong answers.
+118673 Your talking rubbish Claire.
Do you think we are all idiots here.
You are a cheat. Pure and simple.
+2095 Maybe they actually are, though. But Claire, if you actually do not know or aren't sure, I think you should tell them the truth instead of doing something that might count as cheating. Don't let others take advantage of you, and if they really are a friend with help give them advice on a good tutor or teacher. Good luck!
