I need help in:

PreCalculus:

Factoring

Graphing Quadratic Equations: standard, vertex, intercept form

Solving quadratic Equations

Trigonometry Boot-Camp Part 1, Part 2, Part 3

Larson PreCalculus

AP calculus:

Trigonometry Boot-Camp Part 1, Part 2, Part 3

Khan Academy

Larson Calculus & CalcChat