Share
Notifications

View all notifications

Use a Suitable Identity to Get the Following Products (2a ­− 7) (2a − 7) - Mathematics

Login
Create free account


      Forgot password?
ConceptStandard Identities

Question

Use a suitable identity to get the following products

(2a ­− 7) (2a − 7)

Solution

(2a ­− 7) (2a − 7) = (2a − 7)2

= (2a)2 − 2(2a) (7) + (7)2 [(a − b)2 = a2 − 2ab + b2]

= 4a2 − 28a + 49

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 8 (2018 to Current)
Chapter 9: Algebraic Expressions and Identities
Ex. 9.5 | Q: 1.03 | Page no. 151

Video TutorialsVIEW ALL [1]

Solution Use a Suitable Identity to Get the Following Products (2a ­− 7) (2a − 7) Concept: Standard Identities.
S
View in app×