CHAPTER 15 PRACTICE TEST

As a study aid, we have included complete solutions for each Practice Test problem at the end of this book.

Is $- 3$ a zero for the function $2 x^{3} + 3 x^{2} + 7 x - 6 ?$ Explain.
Find the remaining roots of the equation $x^{4} - 2 x^{3} - 7 x^{2} + 20 x - 12 = 0;$ 2 is a double root.
Use synthetic division to perform the division $(x^{3} - 5 x^{2} + 4 x - 9) \div (x - 3) .$
Use the factor theorem and synthetic division to determine whether or not $2 x + 1$ is a factor of $2 x^{4} + 15 x^{3} + 23 x^{2} - 16 .$
Use the remainder theorem to find the remainder of the division $(x^{3} + 4 x^{2} + 7 x - 9) \div (x + 4) .$
Solve for x: $2 x^{4} - x^{3} + 5 x^{2} - 4 x - 12 = 0 .$
The ends of a 10-ft beam are supported at different levels. The deflection y of the beam is given by $y = k x^{2} (x^{3} + 436 ...$

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Basic Technical Mathematics, 11th Edition by Allyn J. Washington, Richard Evans