3 years ago

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

1 answer:

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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