Question

How to do (x^2 - x - 1)(2x^2 + 3x + 4)?

Answer 1

First?:

\[x^2(2x^2)? = 2x^4?\]

Answer 2

x^2*2x^2+x^2*3x+x^2*4 -x*2x^2 -x*3x -x*4 -1(2x^2+3x+4)

Answer 3

yes x^2*x^2 = x^4

Answer 4

Okay, and then:

\[[1]x(3x)? = 3x\]

Answer 5

no, x(3x) = 3x^2

Answer 6

And: 1(4) = 4

So..\[2x^4+3x^2+4?\]

Answer 7

yes if you add up the previous various you'll get that