Topic Details (Notes format)

How to Simplify Algebraic Expressions

Subject: Mathematics

Book: Maths Mastery

Simplifying algebraic expressions typically involves combining like terms, factoring out common factors, and applying distributive properties. For example, if you have 3x + 5x – 2y + y, you can group x terms and y terms: (3x + 5x) + (–2y + y) = 8x – y. Also, for expressions like 4a + 12b, factor out 4: 4(a + 3b). Simplification clarifies expressions and readies them for solving equations or inequalities. This skill is crucial for tackling advanced math—like polynomials, calculus, or system modeling—and fosters clear, methodical problem-solving strategies in both academics and real-life calculations.

Practice Questions

If a+b = 10 and ab = 21, what is the value of a^3 + b^3?

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If the average of five consecutive odd numbers is 25, what is the largest number?

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If a:b = 3:4 and b:c = 5:6, what is a:c?

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A sum triples in 20 years at simple interest. What is the rate of interest per annum?

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If x:y = 4:5 and y:z = 2:3, what is x:z?

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If the radius of a circle is 7 cm, what is its circumference?

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If a = 2 and b = 3, what is the value of (a^2 + b^2)?

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The sum of the squares of two consecutive integers is 145. What are the integers?

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If the ratio of two numbers is 3:5 and their HCF is 4, what are the numbers?

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What is the cube root of 729?

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