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Kelsie Kelsie
  • 12-02-2014
  • Mathematics
Answered

Please help me on #37. I know for A you would use the quadratic equation but I got the wrong answer.

Please help me on 37. I know for A you would use the quadratic equation but I got the wrong answer. class=

Verified Answer :

crisforp
crisforp crisforp
  • 13-02-2014

Δ = (8i)^2 - 4*(-25) => Δ = -36 +100 => Δ = 64 => x1 =(-8i + 8)/2 => x1 = -4i +4;
x2 = (-8i - 8)/2 => x2 = -4i-4; in this case, your solutions are complex conjugates.

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