A-Level Maths: B3-17 [Quadratics: Using the Discriminant to Find How Many Roots a Quadratic Has]

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You are a life saver - I can teach myself the whole course 2 years early thanks to your playlist!

Username-wwcd
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About a minute and a bit he literally drew 2 perfect triangles and a perfect circle all consecutively what

Acrimusic
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sir is there any way is can send you a maths question that you can help me with. I asked my family, friends, teacher and my tutor and none of them understood it.

x_nova_x
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Great vids sir thank you. If I'm given root x= -1, can I say x=1?? or if Root x=-3, x=9?? By sqaring both sides...I always have doubts about this. thanks

geoffphillips