cchavcchav1729 cchavcchav1729
  • 22-01-2018
  • Mathematics
contestada

What value of c makes the polynomial below a perfect square? 4x2 + 12x + c?

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blessedmom1
blessedmom1 blessedmom1
  • 22-01-2018
This is what we know:4x^2 + 12x + c = (2x + k)^2
4x^2 + 12x + c = 4x^2 + 2kx + 2kx + k^2 
c=9
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shanicedw
shanicedw shanicedw
  • 22-01-2018
blessesmom1 is correct C would equal 9
Answer Link

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