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ch 7 test STUDY GUIDE KEY

# ch 7 test STUDY GUIDE KEY - Chapter 7 study guide answers...

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Chapter 7 study guide answers on my website!!!!!! Name: _____________ This study guide is just like your test, but the problems are in a different order! Write the expression in simplest form. (assume all variables are positive) 1) y x 2 ) 2 ( 5 1) _____________________________ Write the expression in simplest form 2) 3 3 2 5 16 4 12 y x y x 2) _____________________________ Write the expression in simplest form. 3) 162 2 7 27 4 + - 3) _____________________________ Solve. Check for extraneous solutions. 4) 243 ) 4 2 ( 3 3 / 4 = + x 4) ____________________________ Write the expression in simplest radical form (assume variables are positive). 5) ( )( ) 5 / 3 5 / 7 7 7 a a 4) _____________________________

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Write the expression in simplest form. 6) ( ) 2 2 7 9 3 + x 5)____________________________ 7 – 10 For the given functions, perform the stated operation and then simplify. 3 9 ) ( + = x x f 2 2 ) ( 2 - = x x g 7) g f ( x ) = 8) ( g - f )( x ) = 7) ____________________ 8) ____________________ 9) f ( x ) g ( x ) = 10) ( f + g )( x ) = 9) ____________________ 10) ____________________ 11 – 14 For the given functions, perform the stated operation and then simplify. 2 8 ) ( + = x x f g ( x ) = ( x - 1) 2 11) f ( g (3)) = 12)
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