b) Simplify the following: i) 12m'n3 16m* n5 ii) 3st* s't 5r3 10r ii) e(7e – 2f) + 3(2e2 – 5f) c) Completely factorise the following: i) x2 + 13x + 30 i) 21x3 — 15х? d) Simplify the following: i) Зт 2m 4 5 ii) 6x 2x* 7x3 5

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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b) Simplify the following:
i)
12m7n3
1
16m4 n5
ii) 3st4
5r3
1
10r
s't
it) e(7е — 2f) + 3(2e2 — 5/)
1
c) Completely factorise the following:
i) x2 + 13x + 30
2
ii) 21x3 – 15x²
2
d) Simplify the following:
i)
3m
2m
2
4
6x
2x4
2
7x3
5
Transcribed Image Text:b) Simplify the following: i) 12m7n3 1 16m4 n5 ii) 3st4 5r3 1 10r s't it) e(7е — 2f) + 3(2e2 — 5/) 1 c) Completely factorise the following: i) x2 + 13x + 30 2 ii) 21x3 – 15x² 2 d) Simplify the following: i) 3m 2m 2 4 6x 2x4 2 7x3 5
3ef5
12ef2
ii)
1
iii) 4u?v
1
5u
5w3
8w
c) Completely factorise the following:
i)
w2 – 7w + 10
ii) 5b4 + 15b3
d) Simplify the following:
i)
3
d4
d
2
Transcribed Image Text:3ef5 12ef2 ii) 1 iii) 4u?v 1 5u 5w3 8w c) Completely factorise the following: i) w2 – 7w + 10 ii) 5b4 + 15b3 d) Simplify the following: i) 3 d4 d 2
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