Question

using identity pls help me pls​

Answer 1

Answer:

a)12100

b)4179

Explanation:

a) 110×110=12100

b)12100-7921=4179

It is correct answer

Answer 2

Answer:

b). It is in form of a^2-b^2= (a+b)(a-b)

(110+89)(110-89)

(199)(21)

4179 is the answer .........

a) (110)^2

we can write( 110)^2(-0)^2

(110+0) (110-0)

(110)(110)

12,100

We can use same identity for both