Simplify the Expression: b²/b¹ Using Exponent Rules

Question

Insert the corresponding expression:

b2b1= \frac{b^2}{b^1}=

Video Solution

Solution Steps

00:00 Simply
00:02 According to the laws of exponents, division of exponents with equal bases (A)
00:05 equals the same base (A) raised to the power of the difference of exponents (M-N)
00:08 We will use this formula in our exercise
00:12 And this is the solution to the question

Step-by-Step Solution

To solve the problem, we apply the quotient rule for exponents. The quotient rule states that when you divide two exponential expressions with the same base, you can subtract the exponent of the denominator from the exponent of the numerator. In mathematical terms:

aman=amn \frac{a^m}{a^n} = a^{m-n}

Using the formula mentioned above, let's solve b2b1 \frac{b^2}{b^1} :

  • Identify the base for both the numerator and the denominator, which in this case is b b
  • Identify the exponents for the numerator and the denominator: m=2 m = 2 and n=1 n = 1
  • Subtract the exponent in the denominator from the exponent in the numerator: 21=1 2 - 1 = 1
  • Rewrite the expression with the new exponent: b21=b1 b^{2-1} = b^1

Thus, b2b1=b1 \frac{b^2}{b^1} = b^1 as per the power of a quotient rule.


The solution to the question is: b1 b^1

Answer

b1 b^1