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    IB Math AASL
    /
    Quadratics
    /

    Video

    Video Reviews

    Watch comprehensive video reviews 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.

    Quadratics

    Video Reviews

    Watch comprehensive video reviews for Quadratics, 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.

    Quadratics, factors & rootsParabolasProblem solving SL+HLHL only

    The video will automatically pause when it reaches a problem.

    Quadratic formula

    SL AA 2.6

    By completing the square for ax2+bx+c, we find that the roots of the quadratic are

    x=2a−b±√b2−4ac​​📖


    Example

    Find the roots of 3x2+4x−2=0.


    x  ​=2⋅3−4+√42−4⋅3⋅(−2)​​ =6−4±√40​=6−4±2√10​​


    So x=3−2±√10​.

    Quadratic formula

    SL AA 2.6

    By completing the square for ax2+bx+c, we find that the roots of the quadratic are

    x=2a−b±√b2−4ac​​📖


    Example

    Find the roots of 3x2+4x−2=0.


    x  ​=2⋅3−4+√42−4⋅3⋅(−2)​​ =6−4±√40​=6−4±2√10​​


    So x=3−2±√10​.

    Quadratics, factors & rootsParabolasProblem solving SL+HLHL only