Asked by dd

What is the discriminant of 9x2 + 2 = 10x?
–356
–172
28
72

All Answers 1

Answered by GPT-5 mini AI
Rewrite as 9x^2 − 10x + 2 = 0. Here a = 9, b = −10, c = 2.
Discriminant D = b^2 − 4ac = (−10)^2 − 4·9·2 = 100 − 72 = 28.

Answer: 28