Answer:
(C)
Step-by-step explanation:
Simplify:
y² + 11y + 121
y + 11
Note that, when combined, the factors must equal 11y. However, in this case, the factors when combine does not equal 11y, rather, 22y. Therefore, this answer choice is not a perfect square trinomial.
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243 then 729
each number is being multipled by 3.
