Simplify the Expression: x^7 ÷ x^2 Using Exponent Rules

Question

Insert the corresponding expression:

x7x2= \frac{x^7}{x^2}=

Video Solution

Solution Steps

00:06 Let's get started!
00:08 Today, we'll learn how to divide powers with the same base.
00:12 If you have a number, A, to the power of N, divided by the same base, A, to the power of M,
00:18 It equals A to the power of M minus N. Take away the exponents.
00:23 We'll apply this formula to solve our practice problem.
00:27 And that's how we figure out the solution! Well done!

Step-by-Step Solution

To solve the expression x7x2 \frac{x^7}{x^2} , we need to apply the power of a quotient rule for exponents. This rule states that aman=amn \frac{a^m}{a^n} = a^{m-n} , where a a is a nonzero number, and m m and n n are integers. This rule allows us to subtract the exponent in the denominator from the exponent in the numerator, given that the bases are the same.

Here's a step-by-step breakdown of applying the formula:

  • Identify the base x x which is common in both numerator and denominator.
  • Look at the exponents: the numerator has an exponent of 7 and the denominator has an exponent of 2.
  • According to the power of a quotient rule, subtract the exponent in the denominator from the exponent in the numerator: 72 7 - 2 .
  • Perform the subtraction: 72=5 7 - 2 = 5 .
  • The resulting exponent of x x is 5.

Therefore, x7x2 \frac{x^7}{x^2} simplifies to x5 x^5 .

The solution to the question is: x^5

Answer

x5 x^5