Question

Solve the expression of 15 times 8 to the power of 0 / 5 + 4 (7 to the power of 0 minus 6)

Answer 1

Let's solve the expression step by step:

The given expression is:

\[
15 \times 8^0 / 5 + 4 \times (7^0 - 6)
\]

Step 1: Calculate \(8^0\) and \(7^0\).

By definition, any non-zero number raised to the power of 0 is 1.

\[
8^0 = 1 \quad \text{and} \quad 7^0 = 1
\]

Step 2: Substitute these values back into the expression.

\[
15 \times 1 / 5 + 4 \times (1 - 6)
\]

Now the expression simplifies to:

\[
15 / 5 + 4 \times (-5)
\]

Step 3: Divide \(15\) by \(5\).

\[
3 + 4 \times (-5)
\]

Step 4: Calculate \(4 \times (-5)\).

\[
4 \times (-5) = -20
\]

Step 5: Substitute back into the expression.

\[
3 - 20
\]

Step 6: Finally, calculate \(3 - 20\).

\[
3 - 20 = -17
\]

Thus, the final result of the expression is:

\[
\boxed{-17}
\]