How to Rearrange Formulas - Leaving Cert Higher Level Maths

Описание: In this video, we break down a common Leaving Cert Higher Level Algebra question focusing on formula manipulation and substitution.

We start by rearranging a formula to express one variable in terms of another, and then we demonstrate how to substitute that result into a larger algebraic expression. This is a vital skill for Paper 1 of the Leaving Certificate and is a frequent topic in both mock exams and the final state exams.

Whether you are in 5th year or 6th year, this step-by-step guide will help you master the algebraic techniques needed to maximize your marks.

Key Topics Covered:

Rearranging formulas (making 'n' the subject)

Substituting algebraic expressions

Simplifying complex fractions and powers

Step-by-step exam question walkthrough

Timestamps
0:00 Introduction to the Algebra problem

0:12 Understanding the question and coordinates

1:58 Part 1: Rearranging the formula for n

2:56 Part 2: Substituting n into the expression

3:40 Simplifying the expression step-by-step

4:18 Dealing with fractions and common denominators

5:42 Expanding brackets and final simplification

6:58 Conclusion and final answer

Tags
Leaving Cert Maths, Algebra, Formula Manipulation, Maths Grinds, Junior Cycle Maths, Leaving Cert Higher Level, Leaving Cert Paper 1, Maths Solutions Ireland, How to rearrange formulas, Substitution in Algebra, Leaving Cert 2025, Maths Made Easy, Leaving Cert Study Tips