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(2x3 - 9x2 - 5) -(-6x2 + 4x + 2) Find the sum or difference

(2x3 - 9x2 - 5) -(-6x2 + 4x + 2) Find the sum or difference
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(2x3 - 9x2 - 5) -(-6x2 + 4x + 2)
Find the sum or difference

User Pauliephonic
by
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1 Answer

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Explanation:


(2 {x}^(3) - 9 {x}^(2) - 5) - ( - 6 {x}^(2) + 4x + 2) \\ = 2 {x}^(3) - 9 {x}^(2) - 5 + 6 {x}^(2) - 4x - 2 \\ = 2 {x}^(3) - 9 {x}^(2)+ 6 {x}^(2) - 4x - 5 - 2 \\ = 2 {x}^(3) - 3 {x}^(2) - 4x - 7

User Juan Marcos Armella
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