82^2-18^2

Solution

8 2^{2} - 1 8^{2}

6400

Solution steps

8 2^{2} - 1 8^{2}

Follow the PEMDAS order of operations

Calculate exponents

8 2^{2} : 6724

= 6724 - 1 8^{2}

Calculate exponents

1 8^{2} : 324

= 6724 - 324

Add and subtract (left to right)

6724 - 324 : 6400

= 6400

4 (- 4)^{2} - (- 4)

4 (- 1) + 8

- 5 + 8 - 9 + 7 + 6 + 10 - 4 - 1

20 - 6 \cdot \frac{20}{14}

2 (0)^{2} - (0) - 1