Answer:
u = [tex]-\frac{1}{2}[/tex] ; u = [tex]-\frac{3}{2}[/tex]
Step-by-step explanation:
4u² + 3 = -8u
4u² + 3 + 8u = -8u + 8u (add 8u both sides)
4u² + 8u + 3 = 0 simplify
using quadratic equation:
- 8 ± √ (8² - 4 * 4 *3)
u = ------------------------------
2 * 4
u = [tex]-\frac{1}{2}[/tex] ; u = [tex]-\frac{3}{2}[/tex]
