Intermediate Algebra & Geometry
Factorising is essentially expanding in reverse - you'll use common factors, difference of two squares, and trinomials (both simple and complex forms). This skill is crucial for solving quadratic equations later.
Straight line equations pop up everywhere, so you'll need to find equations from coordinates, graphs, or real-world contexts. Surds require you to simplify expressions by breaking them down systematically.
Index laws govern how you handle powers and roots. The main rules an×am=an+m,an÷am=an−m,and(an)m=anm will become second nature with practice. Don't forget that a⁻ⁿ = 1/aⁿ.
Arcs, sectors and volume calculations involve specific formulas for cylinders, cones, spheres, hemispheres, and pyramids. Completing the square transforms quadratics from x² + bx + c into the more useful form x+p² + q.
Remember: Pythagoras' theorem works in 2D, 3D, and circle contexts - it's one of the most versatile tools in your mathematical arsenal!