Use synthetic division to show that x is a solution of the third degree polynomial, and use the result to factor de polynomial completely. List all the real solutions of the equation .

Use synthetic division to show that x is a solution of the third degree polynomial, and use the result to factor de polynomial completely. List all the real sol class=

Answer :

*Take the constant term of the divisor with the opposite sign and write it to the left.

*Write the coefficients of the dividend to the right.

Therefore, the solution is given by:

[tex]\begin{gathered} \frac{2x^3-13x^2+22x-8}{x-\frac{1}{2}}=2x^2-12x+16+\frac{0}{x-\frac{1}{2}} \\ \frac{2x^3-13x^2+22x-8}{x-\frac{1}{2}}=2x^2-12x+16 \end{gathered}[/tex]

Therefore, the other solutions can be found as follows:

[tex]2x^2-12x+16=0[/tex]

Divide both sides by 2:

[tex]x^2-6x+8=0[/tex]

The factors of 8 that sum to -6 are -2 and -4, So:

[tex]\begin{gathered} (x-2)(x-4)=0 \\ Hence\colon \\ x=2 \\ and \\ x=4 \end{gathered}[/tex]

${teks-lihat-gambar} CoburnG779598
${teks-lihat-gambar} CoburnG779598