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Perplex
Perplex
Dashboard
Topics
Exponents & LogarithmsApproximations & ErrorSequences & SeriesCounting & BinomialsProof and ReasoningComplex Numbers
Cartesian plane & linesQuadraticsFunction TheoryTransformations & asymptotesPolynomials
2D & 3D GeometryTrig equations & identitiesVectors
ProbabilityDescriptive StatisticsDistributions & Random Variables
DifferentiationIntegrationDifferential EquationsMaclaurin
Review VideosFormula BookletMy Progress
BlogLanding Page
Sign UpLogin
Perplex
IB Math AAHL
/
All units
/
Video

Video Review

Watch comprehensive review videos for most units, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

IB Math AAHL
/
All units
/
Video

Video Review

Watch comprehensive review videos for most units, designed for final exam preparation. Each video includes integrated problems you can solve alongside detailed solutions.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Not your average video:

Interactive Problems: Solve problems alongside the video with step-by-step guidance and detailed solutions.

Exam Preparation: Complete unit reviews designed for final exam preparation with all key concepts covered systematically.

Expert Teaching: High-quality instruction from Perplex co-founder James Mullen with clear explanations, worked examples, and exam tips.

Back

Quadratics

Video Review

Timeline

QUADRATICS, FACTORS & ROOTS

General form of a quadratic

00:00

Factored form of quadratic

00:51

Factoring by inspection

01:29

Exercise

03:05

Completing the square

04:17

Exercise

07:15

Quadratic formula

08:12

Exercise

09:19

Exercise

09:54

The discriminant and solution count

11:31

Exercise

13:13

PARABOLAS

Parabolas

14:31

Quadratic x-intercepts

15:18

Since the roots of a quadratic are \[x=\frac{-b\p

16:00

Concavity of a parabola

16:24

Exercise

16:52

Equation of the axis of symmetry

17:25

Exercise

17:38

Vertex form & coordinates

18:01

Exercise

19:57

Quadratic Inequalities

20:19

Exercise

21:43

PROBLEM SOLVING SL+HL

Problem

23:38

Problem

26:02

Problem

28:50

Problem

34:49

HL ONLY

Vieta's Formulae

41:34

Exercise

42:46

Problem

43:25

Quadratics, factors & rootsParabolasProblem solving SL+HLHL only

The video will automatically pause when it reaches a problem.

General form of a quadratic

SL AA 2.6

A quadratic in ​x​ is an expression of the form

​
ax2+bx+c
​

where ​a=0​

Example

​3x2−1​ is a quadratic, but ​2x+3​ is not.

General form of a quadratic

SL AA 2.6

A quadratic in ​x​ is an expression of the form

​
ax2+bx+c
​

where ​a=0​

Example

​3x2−1​ is a quadratic, but ​2x+3​ is not.

Quadratics, factors & rootsParabolasProblem solving SL+HLHL only
Back

Quadratics

Video Review

Timeline

QUADRATICS, FACTORS & ROOTS

General form of a quadratic

00:00

Factored form of quadratic

00:51

Factoring by inspection

01:29

Exercise

03:05

Completing the square

04:17

Exercise

07:15

Quadratic formula

08:12

Exercise

09:19

Exercise

09:54

The discriminant and solution count

11:31

Exercise

13:13

PARABOLAS

Parabolas

14:31

Quadratic x-intercepts

15:18

Since the roots of a quadratic are \[x=\frac{-b\p

16:00

Concavity of a parabola

16:24

Exercise

16:52

Equation of the axis of symmetry

17:25

Exercise

17:38

Vertex form & coordinates

18:01

Exercise

19:57

Quadratic Inequalities

20:19

Exercise

21:43

PROBLEM SOLVING SL+HL

Problem

23:38

Problem

26:02

Problem

28:50

Problem

34:49

HL ONLY

Vieta's Formulae

41:34

Exercise

42:46

Problem

43:25

Quadratics, factors & rootsParabolasProblem solving SL+HLHL only

The video will automatically pause when it reaches a problem.

General form of a quadratic

SL AA 2.6

A quadratic in ​x​ is an expression of the form

​
ax2+bx+c
​

where ​a=0​

Example

​3x2−1​ is a quadratic, but ​2x+3​ is not.

General form of a quadratic

SL AA 2.6

A quadratic in ​x​ is an expression of the form

​
ax2+bx+c
​

where ​a=0​

Example

​3x2−1​ is a quadratic, but ​2x+3​ is not.

Quadratics, factors & rootsParabolasProblem solving SL+HLHL only