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

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asked Jul 6, 2021 219k views

2 votes

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

Mathematics
middle-school

Pauliephonic asked

by Pauliephonic

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1 Answer

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Explanation:

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

Juan Marcos Armella answered Jul 9, 2021

by Juan Marcos Armella

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