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Algebra II · Live
End classBroadcastOne-to-one
x² − 5x + 6 = 0
(x − 2)(x − 3) = 0
x = 2 or x = 3
Live captions“So the two roots are two and three. Check them by substituting back.”
Knowledge store
New noteEverythingBoard notesClass recordsSelf-study
- Quadratics: board notesAlgebra II · Oct 3
- Factoring practiceClass record · Oct 3
- Where I got stuck: completing the squareSaved by your assistant
- Vertex form, on my ownSelf-study · Oct 5
Quadratics: board notes
x² − 5x + 6 = 0
(x − 2)(x − 3) = 0
Two numbers that multiply to 6 and add to −5. Always check by substituting back.
From the live class · 128 presentAI assistant
Reading your storeI still don’t get why we complete the square.
Last Tuesday you solved x² − 5x + 6 by factoring. Completing the square is for when factoring doesn’t come out clean. Let’s try one that doesn’t.From: Factoring practice · Oct 3
Okay. Give me one.
x² + 6x + 2 = 0. Start the way you did on Tuesday, and tell me where it stops working.
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