Question 1 of 5Factor out the GCF
$$8x^4-72x^2-56x$$
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Select the Correct Answer Below: 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 5Factor out the GCF
$$12x^2y-144xy+156x$$
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Select the Correct Answer Below: 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 5Factor out the GCF
$$15x^2y^5-75xy^3+20xy$$
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Select the Correct Answer Below: Correct! Not Correct!
A
$$-3xy(5y^2-15xy^4-5)$$ $$-3xy(5y^2\hspace{.25em}-$$$$15xy^4-5)$$
B
$$-5xy(15y^2+3xy^4-4)$$ $$-5xy(15y^2\hspace{.25em}+$$$$3xy^4-4)$$
C
$$5xy(15y^2-3xy^4-4)$$ $$5xy(15y^2\hspace{.25em}-$$$$3xy^4-4)$$
D
$$-5xy(15y^2-3xy^4-4)$$ $$-5xy(15y^2\hspace{.25em}-$$$$3xy^4-4)$$
E
$$3xy(5y^2+15xy^4-5)$$ $$3xy(5y^2\hspace{.25em}+$$$$15xy^4-5)$$
Question 4 of 5Factor out the GCF
$$14x^3y^2z+7x^2yz^2-21x^5y^3z+42xy^4z^3$$ $$14x^3y^2z+7x^2yz^2\hspace{.25em}-$$$$21x^5y^3z+42xy^4z^3$$
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Select the Correct Answer Below: 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 5Factor out the GCF
$$(2x-7)(5x-3)+(2x-7)(4x-5)$$ $$(2x-7)(5x-3)\hspace{.25em}+$$$$(2x-7)(4x-5)$$
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Select the Correct Answer Below: Correct! Not Correct!
A
$$(2x-7)(9x-8)$$
B
$$(2x-7)(5x-1)$$
C
$$(2x-7)(2x-3)$$
D
$$(2x-7)(x+1)$$
E
$$(2x-7)(3x+2)$$

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