CBSE Class 9 Answered
Please give solution of the following :-
Asked by | 22 Jul, 2012, 12:07: PM
Expert Answer
Answer : (i) Given : f(x)= -2x + 5
To find : The value of 2f(x)+f(-x)
Now ,
f(x)= -2x + 5..................(1)
Replacing x by -x , we get ,
f(-x)= 2x + 5 .................(2)
Now as asked by the question
= 2 f(x) - f(-x)
= 2 ( -2x + 5) - (2x+5) {using (1) and (2) }
= -4x + 10 - 2x -5
= - 6x + 5 Answer
Note : Please ask one question at a time
Answered by | 22 Jul, 2012, 08:48: PM
Application Videos
-
This video contains a question which is solved using square of binomials -
This video explains factorisation using square identity -
This video contains a question which is solved using Factor theorem -
This video explain an application based problem on Factor theorem. -
This video contains a question which is solved using Remainder theorem
Concept Videos
-
This video explains the definition of polynomial and related terms, identif... -
Discuss various algebraic operations on Polynomials. Learn the statement a... -
This video explains the factorization of polynomials using Factor Theorem a... -
Understand the Algebraic identities for quadratic Polynomials. Apply the i... -
Listing of algebraic identities for cubic Polynomials and simplify the comp...
CBSE 9 - Maths
Asked by anikk659 | 08 Jan, 2023, 03:41: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by lovebagri455 | 14 Jul, 2022, 04:56: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by avani2713 | 08 Jul, 2022, 01:52: AM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by yeshudarsh | 05 Jul, 2022, 06:38: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by meghapatel29121998 | 23 Jun, 2022, 10:08: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by dpsvijender | 21 Jun, 2022, 10:37: AM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by mmansingh949 | 21 Jun, 2022, 09:54: AM
ANSWERED BY EXPERT