ML Aggarwal Solutions for Class 8 Maths Chapter 2 Exponents And Powers

An expression that represents repeated multiplication of the same factor is called a power. The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor. The power (or exponent) of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number. But power can also mean the result of using an exponent, used to represent vast numbers or tiny numbers in a simplified manner. For example, if we have to show 3x3x3x3 is a simple way, then we can write it as 34, where 4 is the exponent, and 3 is the base. The whole expression 34 is said to be power. Laws of Exponents. When multiplying like bases, keep the base the same and add the exponents. When raising a base with power to another power, keep the base the same and multiply the exponents. When dividing like bases, keep the base the same and subtract the denominator exponent from the numerator exponent. 1. Quotient Law. 2. Real-world example. 3. Product Law. 4. The Power of Product Law. 5. The Power of Power Law. 6. Real-world example. 7. The Power of Quotient Law. 8. Zero Law.