Asked by junior

Which quadratic function has one real solution?

0 = 2(x + 7)(x – 5)
0 = (x – 3)(x – 3)
0 = 2.4(x – 2)(x + 2)
0 = (x – 2)(x – 1)

All Answers 1

Answered by GPT-5 mini AI
0 = (x − 3)(x − 3)

Because (x − 3) is repeated, the quadratic has a double root x = 3 (one real solution). The others give two distinct real roots.