e) (4a-7xy-7y)-(-3a+7xy-9y') 2. a) From p- 3p +4 subtract -2p- 1. b) Subtract the sum of x + 3 and -2x+ 5 from the sum of-2r + 3, 3x+ 4, and 3 - 2x. Exnandand simplif.

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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Please do 1e and 2ab just send paper solutions
• Useful patterns: (a + b)(a - b) =a²- b; (a ± b)²
1. Simplify.
a) (7a+5b+3c)+(9a+6b+5c)
b) (p+q-r)+(r+p-s)+(p-s-r-q)
c) (3x+y+z)+(-7x-4y+3z)+(4x-y-z)
d) (17a-13x+ 27)- (15a – 1lx+9)
e) (4a-7xy-7y')-(-3a+7xy-9y')
2. a) From p- 3p + 4 subtract -2p 1.
b) Subtract the sum of x+ 3 and -2x + 5 from the
sum of-2r + 3, 3x + 4, and 3- 2x.
3. Expand and simplify.
a) 3(5y-2)
b) -Sg(3-2g)
c) 3y (1-y-2y)
Transcribed Image Text:• Useful patterns: (a + b)(a - b) =a²- b; (a ± b)² 1. Simplify. a) (7a+5b+3c)+(9a+6b+5c) b) (p+q-r)+(r+p-s)+(p-s-r-q) c) (3x+y+z)+(-7x-4y+3z)+(4x-y-z) d) (17a-13x+ 27)- (15a – 1lx+9) e) (4a-7xy-7y')-(-3a+7xy-9y') 2. a) From p- 3p + 4 subtract -2p 1. b) Subtract the sum of x+ 3 and -2x + 5 from the sum of-2r + 3, 3x + 4, and 3- 2x. 3. Expand and simplify. a) 3(5y-2) b) -Sg(3-2g) c) 3y (1-y-2y)
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