ICSE Class 9 Answered
If (3a+4b) =16 and ab=4 , find the value of (9asquare+16bsquare)
Asked by namratasengar6415.9sdatl | 13 May, 2020, 08:28: AM
Expert Answer
Given: 3a+4b = 16 ... (i) and ab = 4 ... (ii)
Squaring (i), we get
(3a+4b)2 = 162
9a2 + 16b2 + 24ab = 256
9a2 + 16b2 + 24 x 4 = 256 ... Using (ii)
9a2 + 16b2 = 256 - 96 = 160
Hence, 9a2 + 16b2 = 160.
Answered by Renu Varma | 13 May, 2020, 10:47: AM
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
ICSE 9 - Maths
Asked by saleemmohd7671 | 06 Jun, 2023, 06:17: PM
ANSWERED BY EXPERT
ICSE 9 - Maths
Asked by hemanginivyas92.9spicertl | 26 Aug, 2020, 10:43: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by devaindira9848 | 19 Aug, 2020, 01:53: PM
ANSWERED BY EXPERTICSE 9 - Maths
Regards,
Yashwardhan WaghAsked by yashwardhanwagh70.9spicertl | 21 Jul, 2020, 08:03: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by dhanashreeganore | 27 Jun, 2020, 08:28: PM
ANSWERED BY EXPERTICSE 9 - Maths
Asked by Salonipaul.200604 | 09 Jun, 2020, 02:14: PM
ANSWERED BY EXPERT
