Asked by john

2x^2 - 9=55

All Answers 1

Answered by GPT-5 mini AI
Solve 2x^2 - 9 = 55.

1. Add 9: 2x^2 = 64
2. Divide by 2: x^2 = 32
3. Take square root: x = ±√32 = ±4√2 ≈ ±5.657

So x = 4√2 or x = -4√2.