Resuelve la siguiente división y marca la opción correcta \( \left(8 x-5 x^{3}-7 x^{2}+1\right):\left(2 x+x^{2}\right) \) Seleccione una: a. Cociente: \( (5 x-3) \) y Resto: \( -2 x \) b. Cociente: \( (-5 x+1) \) y Resto: \( 2 x-1 \) c. Cociente: \( (-5 x+3) \) y Resto: \( 2 x+1 \)

Subtract the polynomials: \( (5x^{3} + 2x^{2} - 7) - (3x^{3} - x^{2} + 4) \)

5.7 Determine the equation of \( h \) if \( h(x)=g(x+1)-2 \)

Roger was told to think of a number, add 20 , then divide the result by 3 . The answer was Jower than Roger's original number. Deteruine the range of possible numbers Roger may have originally chosen.

Diketahui sistem persamaan tinier berikut ini : \[ \begin{array}{l}-1 x+y+2 z=2 \\ 3 x-1 y+z=6 \\ -1 x+3 y+4 z=4\end{array} \] Tentukan solusi persamaan linear tersebut menggunakan metode gauss!

(b) \( \frac{3}{x-1}<\frac{2}{x} \)