QuestionAugust 26, 2025

8. Which of the following expressions is equivalent to the given expression? 3^0cdot 7^6cdot 7^-4 A 7cdot 7 B 3cdot 7^2 C 7^10 D 147^2

8. Which of the following expressions is equivalent to the given expression? 3^0cdot 7^6cdot 7^-4 A 7cdot 7 B 3cdot 7^2 C 7^10 D 147^2
8. Which of the following expressions
is equivalent to the given
expression?
3^0cdot 7^6cdot 7^-4
A 7cdot 7
B 3cdot 7^2
C 7^10
D 147^2

Solution
4.5(244 votes)

Answer

B 3\cdot 7^{2} Explanation 1. Simplify the expression 3^{0} = 1 because any number to the power of 0 is 1. Combine powers of 7: 7^{6} \cdot 7^{-4} = 7^{6-4} = 7^{2} using **a^m \cdot a^n = a^{m+n}**. 2. Multiply simplified terms The expression simplifies to 1 \cdot 7^{2} = 7^{2}.

Explanation

1. Simplify the expression<br /> $3^{0} = 1$ because any number to the power of 0 is 1.<br /> Combine powers of 7: $7^{6} \cdot 7^{-4} = 7^{6-4} = 7^{2}$ using **$a^m \cdot a^n = a^{m+n}$**.<br /><br />2. Multiply simplified terms<br /> The expression simplifies to $1 \cdot 7^{2} = 7^{2}$.
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