Question

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Answer 1

Required rational expression =

$\longrightarrow \frac{2x^3-x^2+3}{x^2+2} -\frac{x^3-1}{x^2+2} \\ \longrightarrow \frac{2x^3-x^2+3-x^3+1}{x^2+2} \\ \longrightarrow \frac{x^3-x^2+4}{x^2+2}$

Hence ,

The required rational expression is = $\large\frac{x^3-x^2+4}{x^2+2}$

Answer 2

Answer:

Thermodynamics, science of the relationship between heat, work, temperature, and energy. In broad terms, thermodynamics deals with the transfer of energy from one place to another and from one form to another. The key concept is that heat is a form of energy corresponding to a definite amount of mechanical work.

Step-by-step explanation:

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