Adding _______________ to 25-20x it becomes a perfect square trinomial.
choose one answer.
 a. 16x2
 b. 25x2
 c. -4x2
 d. 4x2
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Adding _______________ to 25-20x it becomes a perfect square trinomial.
choose one answer.
 a. 16x2
 b. 25x2
 c. -4x2
 d. 4x2
ans. C
choose one answer.
 a. 16x2
 b. 25x2
 c. -4x2
 d. 4x2
ans. C
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