CBSE Class 8 Answered
Find the value of k, if the value of 3π₯
2 + 5π₯ β 2π equals to 8, when π₯ = β1.
Asked by angelanil292 | 22 Mar, 2021, 11:15: AM
Expert Answer
3x2 + 5x − 2k = 8 when π₯ = −1
Substitute x = -1 in 3x2 + 5x − 2k, we get
3(-1)2 + 5(-1) - 2k = 8
→ 3 - 5 - 2k = 8
→ -2k = 8 + 2
→ k =10/-2 = -5
Answered by Yasmeen Khan | 22 Mar, 2021, 12:52: PM
Application Videos
-
Introduction to Factorisation
This video explains the concept of Factorisation. -
Factorisation using Identities
This video explains the concept of Factorisation using Identities. -
Division of Polynomials
This video explains the Division of Polynomials. -
Division of Polynomials
This video explains the Division of Polynomials.
Concept Videos
-
Introduction to Factorisation
Meaning of factoring an algebraic expansions, factorization by taking commo... -
Division of Polynomials
Dividing monomial by monomial, dividing binomial by monomial and binomial, ... -
Factorisation using identities
Factorising the polynomials using standrad identities
CBSE 8 - Maths
Asked by vashisthanant11 | 17 Mar, 2024, 08:56: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by poongothainavaneethakrishnan | 05 Jan, 2024, 07:00: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by naitikkumarbaldi | 01 Jan, 2024, 09:59: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by tejashreer2010 | 14 Nov, 2023, 07:14: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by shivalaxmi0205 | 15 Feb, 2023, 06:46: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by ruby.jaiswal1 | 18 Feb, 2022, 08:59: PM
ANSWERED BY EXPERTCBSE 8 - Maths
Asked by asthabhandari56.8cpsb | 01 Sep, 2021, 06:14: PM
ANSWERED BY EXPERT
