Solve for a2 a_2=5(4)^(2-1)

$a_{2} = 5 {(4)}^{2 - 1}$

Step 1

Subtract $1$ from $2$ .

$a_{2} = 5 \cdot 4^{1}$

Step 2

Evaluate the exponent.

$a_{2} = 5 \cdot 4$

Step 3

Multiply $5$ by $4$ .

$a_{2} = 20$

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