Question

please help answer these... please answer whatever u can please help
.. wrote the question number befor the answer... please help please​

Answer 1

Answer:

3) (102) square = 10404

$a {}^{2} + b {}^{2} = a {}^{2} + b {}^{2} + 2ab$

${100 {}^{2} + 2} {}^{2} = 100 {}^{2} + 2 {}^{2} + 2 \times 100 \times 2$

=10000+4+400

=10404

1. here a=100 b=2