Sabri56710 Sabri56710
  • 19-05-2017
  • Mathematics
contestada

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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tazariah22
tazariah22 tazariah22
  • 19-05-2017
25b^2-40b+16 is a perfect square.
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