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What number should be added to the expression x²+14x to change it into a perfect square trinomial? 7 14 28 49

What number should be added to the expression x²+14x to change it into a perfect square trinomial? 7 14 28 49
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What number should be added to the expression x²+14x to change it into a perfect square trinomial?

7
14
28
49

asked
User Suresh Sekar
by
7.8k points

1 Answer

4 votes
Answer: D) 49

To get this answer, divide the x coefficient 14 in half to get 7. Then square 7 to get 49.
answered
User Dheeraj Singh
by
8.1k points
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