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Question 1 of 5: Simplify each:
$$(x + 19)(x - 19)$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$x^2 - 361$$
B
$$x - 19$$
C
$$x^2 + 361$$
D
$$x^2 - 38x + 361$$
E
$$x^2 + 38x - 361$$
Question 2 of 5: Simplify each:
$$(x - 11)^2$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$11x^2 - 22x - 121$$
B
$$x^2 - 121$$
C
$$x^2 - 22x + 121$$
D
$$x^2 - 33x - 22$$
E
$$x^2 + 22x - 132$$
Question 3 of 5: Simplify each:
$$(6x - 3y^2)(6x + 3y^2)$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$9y^4 - 36xy^2 + 36x^2$$
B
$${-}9y^4 + 36x^2 $$
C
$$54x^2y^2 + 9y^4 + 36x^2 - 18xy$$
$$54x^2y^2 + 9y^4 \hspace{.2em}+ $$ $$36x^2 - 18xy$$
D
$${-}54y^4 + 18x^2 $$
E
$${-}36x^4y^4 + 18x^2 $$
Question 4 of 5: Simplify each:
$$(3x - 1)^3$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$9x^6 - 18x^3$$
B
$$3x^3 - 27x^2 + 18x - 6$$
C
$$27x^3  - 1$$
D
$$27x^3 - 27x^2 + 9x - 1$$
E
$$4x^6 - 12x^3 - + x^2 + 1$$
Question 5 of 5: Simplify each:
$$(5x + 8y)^3$$
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$25x^3 + 40x^2y + 60xy^2 + 256y^3$$
$$25x^3 + 40x^2y \hspace{.2em}+ $$$$60xy^2 + 256y^3$$
B
$$125x^6 + 300x^2y^2 + 960xy^2 + 256y^6$$
$$125x^6 + 300x^2y^2 \hspace{.2em}+ $$$$960xy^2 + 256y^6$$
C
$$125x^3 - 600x^2y - 512xy^2 + 900y^3$$
$$125x^3 - 600x^2y \hspace{.2em}- $$$$512xy^2 + 900y^3$$
D
$$25x^3 - 900x^2y - 256xy^2 + 300y^3$$
$$25x^3 - 900x^2y \hspace{.2em}- $$$$256xy^2 + 300y^3$$
E
$$125x^3 + 600x^2y + 960xy^2 + 512y^3$$
$$125x^3 + 600x^2y \hspace{.2em}+ $$$$960xy^2 + 512y^3$$

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