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kipiarov [429]
3 years ago
9

Add the polynomials: (-5 - 7x^2); (5 + 7x^3) *

Mathematics
1 answer:
cestrela7 [59]3 years ago
3 0

Answer:

- 7 {x}^{2}  + 7 {x}^{3}

Step-by-step explanation:

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

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