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REUBENFAMILY12IN
Answered

8. Subtract and simplify: (7x3 – 5x + 8) - (4x3 – 2x + 1)
A. 3x3 + 3x - 7
C. 3x3 -3x +7
B. 3x3 - 7x - 7
D. 3x3-7x + 7​

Sagot :

MARIHANI99IN

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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