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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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 much
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
4) Perform the operation: (5x2 - 3x - 9) + (2x2 - 7x + 4)
%28%285x%5E2+-+3x+-+9%29+%2B+%282x%5E2+-+7x+%2B+4%29%29 [combine like-terms]
%28%285x%5E2+-+3x+-+9+%2B+2x%5E2+-+7x+%2B+4%29%29
%28%287x%5E2+-+10x+-+5%29%29