Use app×
QUIZARD
QUIZARD
JEE MAIN 2026 Crash Course
NEET 2026 Crash Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
1.3k views
in Algebra by (26.5k points)
closed by

The two adjacent sides of a rectangle are 2x2 – 5xy + 3z2 and 4xy – x2 – z2. Find the perimeter and the degree of the expression.

1 Answer

+1 vote
by (26.2k points)
selected by
 
Best answer

Let the two adjacent sides of the rectangle as

l = 2x2 – 5xy + 3z2 and b = 4xy – x2y + 3z2

Perimeter of the rectangle

= 2(l + b) 

= 2(2x2 – 5xy + 3z2 + 4xy – x2 – z2)

= 4x2 – 10xy + 6z2 + 8xy – 2x2 – 2z2

= 4x2 – 2x2 – 10xy + 8xy + 6z2 – 2z2

= x2(4 – 2) + xy (-10 + 8) + z2 (6 – 2z2)

Perimeter = 2x2 – 2xy + 4z2

Degree of the expression is 2.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...