Question 1 of 5: Factor out the GCF
Select the Correct Answer: Correct! 
Not Correct! 
Not Correct! A
$$8x(x^3-9x-7)$$
B
$$7x(9x^3-4x-7)$$
C
$$x(8x^3-7x-8)$$
D
$$-8(x^3+9x^2+7)$$
E
$$4(2x^3-18x-14)$$
Question 2 of 5: Factor out the GCF
Select the Correct Answer: Correct! Not Correct!
Not Correct! A
$$4x(3xy-y+3)$$
B
$$12(4xy-8y+13)$$
C
$$12x(xy-12y+13)$$
D
$$-13(4xy+y+12)$$
E
$$4x(-3xy+3y+13)$$
Question 3 of 5: Factor out the GCF
Select the Correct Answer: Correct! Not Correct!
Not Correct! A
$$-3xy(5y^2-15xy^4-5)$$
B
$$-5xy(15y^2+3xy^4-4)$$
C
$$5xy(15y^2-3xy^4-4)$$
D
$$-5xy(15y^2-3xy^4-4)$$
E
$$3xy(5y^2+15xy^4-5)$$
Question 4 of 5: Factor out the GCF
Select the Correct Answer: Correct! Not Correct!
Not Correct! A
$$2x^2y^2z(7xy+z-3x^3y+3y^2z)$$ $$2x^2y^2z(7xy+z\hspace{.25em}-$$$$3x^3y+3y^2z)$$
B
$$7xyz(2x^2y+xz-3x^4y^2+6y^3z^2)$$ $$7xyz(2x^2y+xz$$$$-\hspace{.25em}3x^4y^2+6y^3z^2)$$
C
$$5x(2x^2y^2+x^2z^2+4x^4y+7y^2z^3)$$ $$5x(2x^2y^2+x^2z^2$$$$+\hspace{.25em}4x^4y+7y^2z^3)$$
D
$$-7z(2x^2y+3xz-2x^2y+2y^3z^2)$$ $$-7z(2x^2y+3xz$$$$-\hspace{.25em}2x^2y+2y^3z^2)$$
E
$$-7xz(-7x^2yz+2xz+2x^4y^2+6y^3z^3)$$ $$-7xz(-7x^2yz+2xz$$$$+\hspace{.25em}2x^4y^2+6y^3z^3)$$
Question 5 of 5: Factor out the GCF
Select the Correct Answer: Correct! Not Correct!
Not Correct! A
$$(2x-7)(9x-8)$$
B
$$(2x-7)(5x-1)$$
C
$$(2x-7)(2x-3)$$
D
$$(2x-7)(x+1)$$
E
$$(2x-7)(3x+2)$$
