Simplify 6^-7 × 6^3: Negative and Positive Exponent Reduction

Question

Reduce the following equation:

67×63= 6^{-7}\times6^3=

Video Solution

Solution Steps

00:00 Simplify the following problem
00:03 According to the laws of exponents, the multiplication of powers with equal bases (A)
00:07 equals the same base raised to the sum of the exponents (N+M)
00:11 We will apply this formula to our exercise
00:15 We'll maintain the base and add the exponents together
00:19 This is the solution

Step-by-Step Solution

To simplify the expression 67×63 6^{-7} \times 6^3 , we use the rule for multiplying powers with the same base, which states that we add the exponents together.

Given the expression:

67×63 6^{-7} \times 6^3

Step 1: Identify the base and the exponents involved. The base here is 6, with exponents 7-7 and 33.

Step 2: Apply the multiplication of powers rule:

am×an=am+n a^m \times a^n = a^{m+n}

For our problem, a=6 a = 6 , m=7 m = -7 , and n=3 n = 3 . Therefore:

67×63=67+3 6^{-7} \times 6^3 = 6^{-7 + 3}

Step 3: Calculate the exponent:

7+3=4-7 + 3 = -4

Therefore, the expression simplifies to:

64 6^{-4}

The solution to the equation is 64 6^{-4} .

Answer

64 6^{-4}