Q78. - Algebra 1

Question

Evaluate each expression.

$\left[8\right(2)-4^2]+7\left(4\right)$

Step-by-Step Solution

Answer

The required value is 28.

Step 1. Remove the parenthesis.

$\left[8\right(2)-4^2]+7\left(4\right)=[16-4^2]+28$

Step 2. Solve the exponent.

$\left[8\right(2)-4^2]+7\left(4\right)=[16-16]+28$

Step 3. Subtract the numbers.

$\begin{array}{l}\left[8\right(2)-4^2]+7\left(4\right)=0+28\\ \left[8\right(2)-4^2]+7\left(4\right)=28\end{array}$

The required value is 28.