Question

Please Help, Algebra my Kryptonite :P

Multiply: (x + 1)(x2 - x + 1).

Answer 1

Options

x3 + 1
x3 - 2x2 + 1x
x3 - 2x2 + 2x + 1

Answer 2

if you recoginize \(x^3+1\) as the sum of two cubes, you know
\[x^3+1=(x+1)(x^2-x+1)\]
otherwise you have to multiply out

Answer 3

Are we going to be using FLIO or FOIL?

Answer 4

forget "foil" that is something math teachers say
in this case you have to use six multiplications and "foil" has only 4 letters
\[ (x + 1)(x^2 - x + 1)\]first multiply everything by \(x\)

Answer 5

you get
\[x^3-x^2+x\] then multiply all by \(1\) which is like doing nothing
you get
\[x^2-x+1\] then combine like terms for
\[x^3-x^2+x-x^2-x+1\]

Answer 6

all goes except \(x^3+1\)

Answer 7

Trying to figure out how to write them like you lol, I don't ask many questions :P

Answer 8

So ios that the answer?