Respuesta :

Given problem:

  Write 4.2678 x 10⁵ in decimal form;

   Solution

   To do this simply multiply by 100000 or move the decimal the right in five places.

  4.2678 x 10⁵;

            4.2678 x 100000 = 426780

The answer is 426780

If the exponent is a negative power, move the decimal to the left.