Sagot :
Answer:
[tex]3 {x}^{3} - 3x + 7[/tex]
Solution:
[tex](7 {x}^{3} - 5x + 8) - (4 {x}^{3} - 2x + 1) \\ = 7 {x}^{3} - 5x + 8 - 4 {x}^{3} + 2x - 1 \\ = 3 {x}^{3} - 3x + 7[/tex]
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[tex]3 {x}^{3} - 3x + 7[/tex]
Solution:
[tex](7 {x}^{3} - 5x + 8) - (4 {x}^{3} - 2x + 1) \\ = 7 {x}^{3} - 5x + 8 - 4 {x}^{3} + 2x - 1 \\ = 3 {x}^{3} - 3x + 7[/tex]
#CarryOnLearning
#StudyWell