Solve the inequality 4t^2 \le -9t + 12 - 4t + 23 + (2t - 1)(2t + 1). Write your answer in interval notation.
Combine like terms:
\(4t^2{\le}-13t+35+4t^2-1\)
\(13t{\le}34\)
\(t{\le}{34\over{13}}\)
Your answer in interval notation would be (-inf, 34/13]