Question
Download Solution PDF(2x − 5y)2 + (5x + 2y)2 + (2x + 5y)(2x − 5y) सोपे करा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिले आहे:
(2x - 5y)2 + (5x + 2y)2 + (2x + 5y)(2x - 5y) सोपे करा.
वापरलेले सूत्र:
(a - b)2 = a2 - 2ab + b2
(a + b)2 = a2 + 2ab + b2
(a + b)(a - b) = a2 - b2
गणना:
(2x - 5y)2 + (5x + 2y)2 + (2x + 5y)(2x - 5y)
⇒ (2x)2 - 2(2x)(5y) + (5x)2 + 2(5x)(2y) + (2y)2 + (2x)2 - (5y)2
⇒ 4x2 - 20xy + 25y2 + 25x2 + 20xy + 4y2 + (4x)2 - 25y2
⇒ 33x2 + 4y2
∴ योग्य उत्तर पर्याय (2) आहे.
Last updated on Jul 22, 2025
-> RRB NTPC Undergraduate Exam 2025 will be conducted from 7th August 2025 to 8th September 2025.
-> The RRB NTPC UG Admit Card 2025 will be released on 3rd August 2025 at its official website.
-> The RRB NTPC City Intimation Slip 2025 will be available for candidates from 29th July 2025.
-> Check the Latest RRB NTPC Syllabus 2025 for Undergraduate and Graduate Posts.
-> The RRB NTPC 2025 Notification was released for a total of 11558 vacancies. A total of 3445 Vacancies have been announced for Undergraduate posts while a total of 8114 vacancies are announced for Graduate-level posts in the Non-Technical Popular Categories (NTPC).
-> Prepare for the exam using RRB NTPC Previous Year Papers.
-> HTET Admit Card 2025 has been released on its official site