Question

1. $3cdot4^2 - \frac{40}{5}$

Explanation:

Step1: Calculate the exponentiation

First, calculate \(4^2\), which is \(4\times4 = 16\).

Step2: Perform the multiplication

Then, multiply \(3\) by the result of \(4^2\), so \(3\times16 = 48\).

Step3: Simplify the fraction

Next, simplify \(\frac{40}{5}\), which equals \(8\) (since \(40\div5 = 8\)).

Step4: Perform the subtraction

Finally, subtract the simplified fraction from the product: \(48 - 8 = 40\).

Answer:

\(40\)