Question

872²-152² evaluate without using calculator​

Answer 1

Answer:

Step-by-step explanation:

872²-152²

=(872+152)(872-152)

=1024 *720

=2*512*9*80

=2*2*256*3*3*10*8

=4*2^8*3²*2*5*2³

=4*2^8*3²*2*5*2³

=2¹⁴x 45