math help please 10 points?

[ladawnshon]

(x + 3)(x - 3) = ?
Question 1 answers
x2 - 3
x2 + 3x - 9
x2 - 3x - 9
x2 - 9


(x + 1)(x2 + x + 1) = ?
Question 2 answers
x3 + 2x2 + 2x + 1
2x3 + 2x2 - 2x + 2
x3 - 2x2 + 2x - 1
x3 + 1


(x - 1)(x3 + x2 + x) = ?
Question 3 answers
x2 - x
x4 - x
x4 + x
x4 + 2x3 - x


Factor x2 - 1
Question 4 answers
(x - 1) · (x - 1)
(x + 1) · (x - 1)
(x + 1) · (x - 2)
(x + 2) · (x - 1)


Factor x2 - 9
Question 5 answers
(x + 1) · (x - 9)
(3x + 1) · (3x - 1)
(x + 3) · (x - 3)
(x + 1) · (x + 3)

Factor x2 + 3x - 18
Question 6 answers
(x + 9) · (x - 2)
(x + 6) · (x - 2)
(x + 3) · (x - 6)
(x + 6) · (x - 3)

[ironduke8159]

(x + 3)(x - 3) = x2 - 9


(x + 1)(x2 + x + 1) = 2x3 + 2x2 - 2x + 2

(x - 1)(x3 + x2 + x) = x4 - x

x2 - 1 = (x + 1) · (x - 1)

x2-9 = (x + 3) · (x - 3)


x2 + 3x - 18 = (x + 6) · (x - 3)

[ana_dash]

(x + 3)(x - 3) = ? use foil
x^2 - 9

(x + 1)(x2 + x + 1) = ?
x^3 + x^2 + x + x^2 + x + 1
x^3 + 2x^2 + 2x + 1


(x - 1)(x3 + x2 + x) = ?
x^4 + x^3 + x^2 - x^3 - x^2 - x
x^4 - x


Factor x2 - 1
(x - 1)(x + 1)


Factor x2 - 9
(x - 3)(x + 3)

Factor x2 + 3x - 18
(x + 6)(x - 3)

[Ryann]

1. x2-9
2.x3+2x2+2x+1
3.x4-x
4.(x+1)(x-1)
5.(x+3)(x-3)
6.(x+6)(x-3)

[katie d]

1) (x + 3)(x - 3) = ?
= x^2 - 9

2) (x + 1)(x2 + x + 1) = ?
= x^3 + x^2 + x + x ^2 + x + 1
= x^3 + 2x^2 + 2x + 1

3) (x - 1)(x3 + x2 + x) = ?
= x^4 + x^3 + x^2 - x^3 - x^2 - x
= x^4 - x
= x (x^3 - 1)

4) Factor x2 - 1
= (x + 1) (x - 1)

5) Factor x2 - 9
= (x + 3) (x - 3)

6) Factor x2 + 3x - 18
= (x + 6) (x - 3)

[thinker_miller]

1. x2-9

2. x3+2x2+2x+1

3. x4-x

4. (x+1) (x-1)

5. (x+3) (x-3)

6. (x+6) (x-3)