Question

Expand ( x – 10 )
² using identity.​

Answer 1

Answer:

x2 + 100 - 20x

hope it will be helpful

Answer 2

Answer:

(a+b )² = (101)2

=(100+1)2

Using (a+b)2=a2+b2+2ab

(100+1)2=1002+12+2×100×1

=10000+1+200

=10000+201

=10201.