Mathematics, 19.01.2020 18:31, heartprague
1. what number should be added to the expression x^2+2x to change it into a perfect square trinomial?
a. 1
b. 2
c. 4
d. 9
2. what number should be added to the expression x^2+14x to change it into a perfect square trinomial?
a. 7
b. 14
c. 28
d. 49
Answers: 2
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