Question

If you multiply (x^2 + 4x – 3)(2x^2 + x + 6), the answer (not in simplified and standard form) is 2x^4 + x^3 + 6x^2 + 8x^3 + 4x^2 + 24x - 6x^2 - 3x - 18, right? xD

Answer 1

Which would simplify to..

Answer 2

Use this for checking http://www.wolframalpha.com/input/?i=%28x%5E2+%2B+4x+%E2%80%93+3%29%282x%5E2+%2B+x+%2B+6%29

Answer 3

Always use wolframalpha

Answer 4

2x^4 + 9x^3 + 4x^2 + 21x - 18. right? o.o

Answer 5

I don't understand wolfram. ._.

Answer 6

Right!

Answer 7

CORRECTO!

Answer 8

wait.. wait.. so if i'm right, why did my teacher say I was wrong. D:

Answer 9

Your teacher is wrong lol

Answer 10

oh. well then. xD