Question

find the value using property
200² - 198²

Answer 1

Answer:

(100+100)2  - (100+98)2

100(1+1)2 - (1+98)2

Step-by-step explanation:

Answer 2

200*2-198*2

we use identity a*2+b*2=(a+b)(a-b)

(200+198)(200-198)

(398)(2)

=796