Question

now, evaluate the expression with a power.
$5\cdot4 - 3 = 17$
$5\cdot4^2 - 3 = \square$

Explanation:

Step1: Calculate the power

First, we need to calculate \(4^2\). According to the definition of exponentiation, \(4^2 = 4\times4 = 16\).

Step2: Perform the multiplication

Next, we multiply 5 by the result of the power calculation. So, \(5\times16 = 80\).

Step3: Perform the subtraction

Finally, we subtract 3 from the result of the multiplication. That is, \(80 - 3 = 77\).

Answer:

77