1. Expand the brackets a. X(x+2) b. X2(x+x2) c. 3x(x-y) d. 4x2(2-3x) e. X3(1+2x -x2) f. 4x(2y-x+y2)   2. Simplify: a. 2x2 X x3 / x b. 4y3 X y X y2 / y3 c. X2 X y2 X x2 / y3 X x

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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1. Expand the brackets

a. X(x+2)

b. X2(x+x2)

c. 3x(x-y)

d. 4x2(2-3x)

e. X3(1+2x -x2)

f. 4x(2y-x+y2)

 

2. Simplify:

a. 2x2 X x3 / x

b. 4y3 X y X y2 / y3

c. X2 X y2 X x2 / y3 X x

d. 4x4 X x5 / y2 X x3

Expert Solution
Step 1

We can solve this by properties of power of polynomials

xm*x= xm+n

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