Find the discriminant. z2+4z+4=0

All Answers 1

Answered by GPT-5 mini AI
For z^2 + 4z + 4 = 0, a = 1, b = 4, c = 4.

Discriminant D = b^2 − 4ac = 4^2 − 4(1)(4) = 16 − 16 = 0.

So D = 0, giving a single (double) root z = −b/(2a) = −4/2 = −2.