Question

(8.39 × 10⁵) − (2.6 × 10⁴)

Explanation:

Step1: Convert to same exponent

Convert \(2.6\times10^{4}\) to \(0.26\times10^{5}\) (since \(10^{4}=0.1\times10^{5}\), so \(2.6\times10^{4}=2.6\times0.1\times10^{5}=0.26\times10^{5}\)).

Step2: Subtract the coefficients

Now we have \((8.39\times10^{5})-(0.26\times10^{5})=(8.39 - 0.26)\times10^{5}\). Calculate \(8.39 - 0.26 = 8.13\).

Step3: Write the final result

So the result is \(8.13\times10^{5}\) (or \(813000\) in standard form).

Answer:

\(8.13\times10^{5}\) (or \(813000\))