Question

help me plez plz plz plz​

Answer 1

Answer:

you just need to do [200-9]*[200+9]

and then u can further solve it by doing :

200^2 -9^2

= then u can solve it further

Answer 2

Answer:

209×191

=(200+9)(200-9)

=200 square-9 square because (x+y)(x-y)

40000-81

=39919

is your answer