Question

What is the value of 6 × 7 – 3^2 × 9 + 4^3

Answer 1

Starting with the given expression:

`6\cdot7-3^2\cdot9+4^3`

Follow the hierarchy of operations to find the value.

First, solve potencies and roots. Solve the powers 3^2 and 4^3:

`6\cdot7-3^2\cdot9+4^3=6\cdot7-9\cdot9+64`

Next, solve the multiplications and divisions:

`6\cdot7-9\cdot9+64=42-81+64`

Solve the sums and substractions:

`42-81+64=-39+64=25`

Therefore:

`6\cdot7-3^2\cdot9+4^3=25`