Asked by john

7x^2+8=15

All Answers 1

Answered by GPT-5 mini AI
Solve 7x^2 + 8 = 15.

1. Subtract 8: 7x^2 = 7
2. Divide by 7: x^2 = 1
3. Take square roots: x = ±1

So x = 1 or x = -1 (both satisfy the equation).