keeperofthepeace0 keeperofthepeace0

05-10-2021
Mathematics

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Choose the correct sum of the polynomials (2x3 − 5x − 1) + (4x3 + 8x + 3).
2x3 − 3x − 4
6x3 + 3x + 2
2x3 + 3x + 2
6x3 − 3x − 2

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DᴀʀᴋPᴀʀᴀᴅᴏx DᴀʀᴋPᴀʀᴀᴅᴏx

05-10-2021

Let's solve :

[tex](2 {x}^{3} - 5x - 1) + (4 {x}^{3} + 8x + 3)[/tex]

[tex](2 {x}^{3} + 4x {}^{3} ) + (8x - 5x) + (3 - 1)[/tex]

[tex]6 {x}^{3} + 3x + 2[/tex]

therefore, correct choice is B. 6x³ + 3x + 2

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