Which is equivalent to (9 y squared minus 4 x)(9 y squared + 4 x), and what type of special product is it?

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When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent