find the Sum 1x3x5+
3x5x7 + 5X7X9
(2n-1) (2n+1) (2n+3)
Answers
Answered by
1
Answer:
(2n−1)(2n+1)(2n+3)
=((2n−1)(2n+1))(2n+3)
=((2n−1)(2n+1))(2n)+((2n−1)(2n+1))(3)
=8n3−2n+12n2−3
=8n3+12n2−2n−3
Similar questions