CBSE Class 9 Answered
+y = 7
x + 
= 11, Find the value of x and y.
Asked by chinmaykunal10 | 26 Dec, 2019, 10:05: PM
Expert Answer
rootx + y = 7 .... (i)
x + rooty = 11 .... (ii)
Let x = p2 and y = q2
p + q2 = 7 ...(iii)
→ p = 7 - q2
p2 + q = 11 ... (iv)
Substituting the value of p in (iv), we get
(7 - q2 )2+ q = 11
After simplification, we get
(q-2)(q3 + 2q2 - 10q - 19) = 0
→(q-2) = 0
→ q = 2
From (iii), we get
p =7 - 4 = 3'
→ x = p2 = 9 and y = q2 = 4
Answered by Yasmeen Khan | 27 Dec, 2019, 12:36: PM
Application Videos
-
Algebraic Identities: Quadratic
This video contains a question which is solved using square of binomials -
Factorisation using Square identity
This video explains factorisation using square identity -
Square of trinomials
This video contains a question which is solved using square of trinomials
Concept Videos
-
Algebraic Identities: Quadratic
Understand the Algebraic identities for quadratic Polynomials. Apply the i... -
Algebraic Identities: Quadratic
Understand the Algebraic identities for quadratic Polynomials. Apply the i... -
Algebraic Identities: Quadratic
Understand the Algebraic identities for quadratic Polynomials. Apply the i... -
Factorisation
Factorisation, Factorisation Using Square Identities -
Factorisation
Factorisation, Factorisation Using Square Identities
CBSE 9 - Maths
Asked by sumithra.suresh1 | 18 Jun, 2022, 05:15: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by tabhinav666 | 15 May, 2022, 05:54: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by shreya.khairnar2007 | 02 Apr, 2022, 06:13: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by mohammad.muntazir.the.legend | 07 Mar, 2022, 04:05: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by saakshigoel207 | 04 Jun, 2021, 08:19: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by mohit9949941900 | 28 Feb, 2021, 05:08: PM
ANSWERED BY EXPERT
