# SOLUTION: 4) Perform the operation: (5x2 - 3x - 9) + (2x2 - 7x + 4) 5) Multiply: [(1/4)z + (1/3)][(1/4)z - (1/5)] 6)Simplify and evaluate: (22x5y-3z4/40x-2y-8z5)3 thank you very

Algebra ->  Algebra  -> Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: 4) Perform the operation: (5x2 - 3x - 9) + (2x2 - 7x + 4) 5) Multiply: [(1/4)z + (1/3)][(1/4)z - (1/5)] 6)Simplify and evaluate: (22x5y-3z4/40x-2y-8z5)3 thank you very       Log On

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 Algebra: Numeric Fractions Solvers Lessons Answers archive Quiz In Depth

 Question 64189: 4) Perform the operation: (5x2 - 3x - 9) + (2x2 - 7x + 4) 5) Multiply: [(1/4)z + (1/3)][(1/4)z - (1/5)] 6)Simplify and evaluate: (22x5y-3z4/40x-2y-8z5)3 thank you very muchAnswer by tutorcecilia(2152)   (Show Source): You can put this solution on YOUR website!4) Perform the operation: (5x2 - 3x - 9) + (2x2 - 7x + 4) [combine like-terms]