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Mathematics, 15.10.2019 09:10 sugar1014

Which polynomial is a perfect square trinomal?
a. 36x^2- 18x -9
b. 4a^2 -28a -49
c.25b^2 -40b + 16
d. 4x^2 -6x + 9

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Which polynomial is a perfect square trinomal?
a. 36x^2- 18x -9
b. 4a^2 -28a -49
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