Quadratic Inequalities: Inequality

Examples with solutions for Quadratic Inequalities: Inequality

Exercise #1

Solve the following equation:

x^2+4>0

Video Solution

Answer

All values of x x

Exercise #2

Solve the following equation:

x^2+9>0

Video Solution

Answer

All values of x x

Exercise #3

Solve the following equation:

-x^2-9>0

Video Solution

Answer

There is no solution.

Exercise #4

Solve the following equation:

-x^2+2x>0

Video Solution

Answer

0 < x < 2

Exercise #5

Solve the following equation:

x^2-3x+4<0

Video Solution

Answer

There is no solution.

Exercise #6

Solve the following equation:

x^2-6x+8<0

Video Solution

Answer

2 < x < 4

Exercise #7

Solve the following equation:

-x^2+3x+4>0

Video Solution

Answer

-1 < x < 4

Exercise #8

Solve the following equation:

x^2-8x+12>0

Video Solution

Answer

x < 2,6 < x

Exercise #9

Solve the following equation:

x^2+4x>0

Video Solution

Answer

x < -4,0 < x

Exercise #10

Solve the following equation:

x^2-9<0

Video Solution

Answer

-3 < x < 3

Exercise #11

Solve the following equation:

x^2-16>0

Video Solution

Answer

x < -4,4 < x

Exercise #12

Solve the following equation:

x^2-2x-8>0

Video Solution

Answer

Answers (a) and (c)

Exercise #13

Solve the following equation:

x^2-25<0

Video Solution

Answer

-5 < x < 5

Exercise #14

Solve the following equation:

-x^2-25<0

Video Solution

Answer

All values of x x

Exercise #15

Solve the following equation:

x^2+6x>0

Video Solution

Answer

x < -6,0 < x

Exercise #16

Solve the following equation:

-x^2-10x>0

Video Solution

Answer

-10 < x < 0

Exercise #17

Solve the following equation:

x^2+4>0

Video Solution

Answer

All values of x x

Exercise #18

Solve the following equation:

x^2+4x>0

Video Solution

Answer

x < -4,0 < x

Exercise #19

Solve the following equation:

x^2-16>0

Video Solution

Answer

x < -4,4 < x

Exercise #20

Solve the following equation:

x^2+7x+10<0

Video Solution

Answer

-5 < x < -2