Question

Simplify the expression. Write the answer using scientific notation. (4 x 10^8)^2

Answer 1

Answer:

1.6 x 10¹⁷

Step-by-step explanation:

(4 x 10⁸)²   (distribute the outside power into the parentheses)

=(4)² x (10⁸)²

=16 x (10⁽⁸⁾⁽²⁾)

= 16 x 10¹⁶

= 1.6 x 10 x 10¹⁶

= 1.6 x 10¹⁷