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# Radicals, word problems, and polynomials

5.5 factor each polynomial completely
81 - q^4

Section 6
EX 104)

EX 22)
Ex 88) 88. Traveling time. After leaving Moose Jaw, Hanson drove
200 kilometers at x km/hr and then decreased his speed by
20 km/hr and drove 240 additional kilometers. Make a table
like the one in Exercise 87.Write a rational expression for
his total traveling time. Evaluate the expression for x _ 100.

Simplify each complex fraction
Ex 50

Extraneous solutions
Ex # 40

9.1 # 38 &#8730;(&#12310;36n&#12311;^2 )
simplify
9.2 #102 -(27-4/3)/8
9.3 #38
&#8730;(2&5c-) &#8730;(5&5)
9.4 # 14
&#8730;(3/8)
9.4 #62 (2 &#8730;(y&#12310;) &#12311;^3 )
9.5 ex #34
&#8731;(a+3=) &#8731;(2a-7)

10.1 ex #84
1/4 x^(2 )+17/4 - 2x
Find real or imaginary solutions
10.2 w^2+9 - 0
10.3 # 92Time off for lunch. It usually takes Eva 3 hours longer to
do the monthly payroll than it takes Cicely. They start
working on it together at 9:00 A.M. and at 5:00 P.M. they
have 90% of it done. If Eva took a 2-hour lunch break
while Cicely had none, then how much longer will it
take for them to finish the payroll working together?

#### Solution Summary

This provides examples of working with a variety of algebra topics, including factoring, word problems, and radical expressions.

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