Solve quadratic inequalities (a = 1)

Solve quadratic inequalities (a = 1)

Lesson details

Key learning points

  1. In this lesson, we will solve quadratic inequalities with an x² coefficient of 1 and express solutions using set notation.

Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

Loading...

3 Questions

Q1.
What is the solution set for x² ≥ 25?
An image in a quiz
A
Correct answer: B
C
D
Q2.
What is the solution set for x² - 7 > 74?
An image in a quiz
Correct answer: A
B
C
D
Q3.
What is the solution set for 2x² - 11 ≤ 61?
An image in a quiz
A
B
C
Correct answer: D

3 Questions

Q1.
What is the solution set for x² + x - 6 > 0?
An image in a quiz
A
Correct answer: B
C
D
Q2.
What is the solution set for x² + 3x - 4 < 0?
An image in a quiz
A
B
Correct answer: C
D
Q3.
Why does x² + 9 < 0 not have any solutions?
An image in a quiz
A
B
C
Correct answer: D

Lesson appears in

UnitMaths / Quadratic sequences