Question

12. Solve. 18x - 2129 A. [1,00) B. B. [-, il C. (-0, 1]u[9, 00) D. (-∞, -] [HT, co) 13. Use synthetic division to find the function value. f(x) = x5 – 10x*-+ 20x3 - 2x - 300; find f(8). A. 1732 B. 1730 C. 2332 D. 1734

Please show work

Answer 1

Question-12

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$\left|8x-2\right|\ge 9$

$8x-2\le \:-9\quad \mathrm{or}\quad \:8x-2\ge \:9$

$8x\le 2-9\quad \:\mathrm{or}\quad \:\:8x\ge 2+9$

$8x\le -7\quad \:\mathrm{or}\quad \:\:8x\ge 11$

$x\le -\frac{7}{8}\quad \:\mathrm{or}\quad \:\:x\ge \frac{11}{8}$

${\color{Red} \:(-\infty \:,\:-\frac{7}{8}]\cup \:[\frac{11}{8},\:\infty \:)}$...................option D

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Question-13

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f(x) = 25-10x5 + 20x3 + 0x² or? - 22 300 8 -10 20 o -2 -300 8 -16 32 256 2032 1 -2 4 32 254 1732 < remainder +18) = 1732 <option - (A)