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What number should be added to the expression x2 + 2x to change it into a perfect square trinomial? A:1 B:2 C:3 D:4
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What number should be added to the expression x2 + 2x to change it into a perfect square trinomial?

A:1
B:2
C:3
D:4

User Yjw
by
8.3k points

2 Answers

5 votes
1. In this way you get x^2+2x+1 which is (x+1)^2.
User Justin Taddei
by
7.8k points
5 votes
d 4
d4
D4
D 4
D:4
nubiuhbj
User Noora
by
8.0k points
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