CBSECBSE Class 8
Textbook Solutions5346
Question Bank Solutions4773
Concept Notes & Videos272
Syllabus
Advertisement Remove all ads

Using Identities, Evaluate 297 × 303 - Mathematics

Using identities, evaluate 297 × 303

Advertisement Remove all ads

Solution

297 × 303 = (300 − 3) × (300 + 3)

= (300)2 − (3)2 [(a + b) (a − b) = a2 − b2]

= 90000 − 9 = 89991

Concept: Expansion of (a + b)2 = a2 + 2ab + b2
  Is there an error in this question or solution?
Chapter 9: Algebraic Expressions and Identities - Exercise 9.5 [Page 152]
Q 6.6
Advertisement Remove all ads

APPEARS IN

NCERT Class 8 Maths Textbook
Chapter 9 Algebraic Expressions and Identities
Exercise 9.5 | Q 6.6 | Page 152
Advertisement Remove all ads

Video TutorialsVIEW ALL [1]

Advertisement Remove all ads
Share
Notifications

View all notifications

My Profile

My Profile [view full profile]
Login
Create free account


      Forgot password?
Course
View in app×