9000029308
Level:
B
Find the solution set of the following inequality.
\[
x^{3} + 4x < 0
\]
\((-\infty ;0)\)
\((2;\infty )\)
\(\mathbb{R}\)
\(\emptyset \)
\((0;\infty )\)
Higher degree equations and inequalities
9000029309
Level:
B
Find the solution set of the following inequality.
\[
(x - 1)(x - 2)(x - 3) < (x - 1)(x - 2)
\]
\((-\infty ;1)\cup (2;4)\)
\(\emptyset \)
\((0;3)\)
\((-\infty ;-3)\cup (3;\infty )\)
\((-3;3)\)
9000029310
Level:
B
Find the solution set of the following inequality.
\[
(x + 2)(x^{2} + 4x + 3) > x^{2} + 5x + 6
\]
\((-3;-2)\cup (0;\infty )\)
\((-\infty ;-3)\cup (3;\infty )\)
\((-\infty ;-1)\cup (1;\infty )\)
\((-1;1)\)
\(\mathbb{R}\)
9000031001
Level:
B
Find the sum of all real roots of the following equation.
\[
(3x - 1)(2x + 1)(4x^{2} + 3x - 1) = 0
\]
\(-\frac{11}
{12}\)
\(- \frac{1}
{12}\)
\(-\frac{1}
{6}\)
\(\frac{1}
{6}\)
9000031002
Level:
B
One of the solutions of the following equation is
\(x = 2\). Find
the set of all solutions.
\[
x^{3} + 2x^{2} - 5x - 6 = 0
\]
\(\{ - 3;-1;2\}\)
\( \{ - 3;-1\}\)
\( \{ - 3;0;2\}\)
\(\{ - 1;2;3\}\)
9000031003
Level:
B
Assuming \(x\in \mathbb{R}\),
solve the following algebraic equation.
\[
x^{4} + 4x^{2} - 5 = 0
\]
\( \{ - 1;1\}\)
\( \{1\}\)
\( \{ -\sqrt{5};-1;1;\sqrt{5}\}\)
\( \emptyset \)
9000031004
Level:
B
Assuming \(y\in \mathbb{R}\),
find the number of the solutions of the following algebraic equation.
\[
y^{4} + 5y^{2} + 6 = 0
\]
\(0\)
\(4\)
\(3\)
\(2\)
9000031005
Level:
B
Assuming \(x\in \mathbb{R}\),
solve the following algebraic equation.
\[
(x + 1)^{4} - 5(x + 1)^{2} + 4 = 0
\]
\( \{ - 3;-2;0;1\}\)
\( \{1;4\}\)
\( \{ - 2;-1;1;2\}\)
\( \{ - 1;3\}\)
9000031008
Level:
B
Assuming \(x\in \mathbb{R}\),
solve the following equation.
\[
4x^{3} - 3x^{2} - x = 0
\]
\( \left \{-\frac{1}
{4};0;1\right \}\)
\(\{0;1;4\}\)
\( \{1;4\}\)
\( \{0\}\)
9000031009
Level:
B
Find the sum of the solutions of the following equation.
\[
6(3x + 1)(2x^{2} + 3x - 2) = 0
\]
\(-\frac{11}
{6} \)
\(-\frac{7}
{6}\)
\(-\frac{1}
{2}\)
\(\frac{11}
{6} \)