Advertisement Remove all ads

Using Identities, Evaluate 99square2 - Mathematics

Using identities, evaluate 992

Advertisement Remove all ads

Solution

992 = (100 − 1)2

= (100)2 − 2(100) (1) + (1)2 [(a − b)2 = a2 − 2ab + b2 ]

= 10000 − 200 + 1 = 9801

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

NCERT Class 8 Maths Textbook
Chapter 9 Algebraic Expressions and Identities
Exercise 9.5 | Q 6.2 | Page 152
Advertisement Remove all ads

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×