Sarthaks Test
0 votes
206 views
in Mathematics by (15.0k points)

Solve the question:

(i) 15pq + 15 + 9q + 25p

(ii) z − 7 + 7xy − xyz

1 Answer

0 votes
by (24.8k points)
selected by
 
Best answer
(i) 15pq + 15 + 9q + 25p

= 15pq + 9q + 25p + 15

= 3 × 5 × p × q + 3 × 3 × q + 5 × 5 × p + 3 × 5

= 3q (5p + 3) + 5 (5p + 3)

= (5p + 3) (3q + 5)

(ii) z − 7 + 7xy − xyz

= z − x × y × z − 7 + 7 × x × y

= z (1 − xy) − 7 (1 − xy)

= (1 − xy) (z − 7)

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

...