Question

Integer HELP please.

Answer 1

Answer; A and B

Explanation; 4^-2 • 7^-2

==> (4•7)^-2 ______ answer 1

==> (28)^-2

==> to change the negative power to positive, we make it a denominator of 1

==> 1/28^2 ______ answer 2

Answer 2

Step-by-step explanation:

$\frac{1}{{28}^{2}} \\ \\ = ( {28})^{ - 2} \\ \\ = ( {4 \times 7})^{ - 2} \\ \\ = {4}^{ - 2} . {7}^{ - 2} \\ \\ thus \\ \\ \huge \red{ \boxed{ \therefore \frac{1}{{28}^{2}} = {4}^{ - 2} . {7}^{ - 2} }}$