Find (7*10^6) - (4*10^4)

=6960000 or 6.96 x 10^6

Step-by-step explanation:

1. remove unnecessary parentheses

7 x 10^6 - 4 x 10^4

2. factor the expression

(7 x 10^2 - 4) x 10^4

3. evaluate the power

(7 x 100 - 4) x 10000

4. multiply the numbers

(700 - 4) x 10000

5. subtract the numbers

696 x 10000

6. Multiply the numbers

=6960000

or

6.96 x 10^6