Master all techniques for solving quadratic equations with this algebra tutorial! We'll cover the factoring method, square roots, completing the square, and the quadratic formula with 24 detailed workedout examples. The last 4 equations also feature quadratic equations with complex solutions. Note, "i" is the imaginary unit where i^2=1 and sqrt(1)=i. This video is perfect for algebra and precalculus students. Teachers and tutors, feel free to use this video and worksheet with your students.
#algebra #math #blackpenredpen
worksheet / myalgebraonly81417933
my written solution / myalgebra81418158
0:00 24 quadratic equations with only "1, 2, 3, 4"
0:31 Q1, solving a quadratic equation by factoring
4:55 Q2, by taking the square roots on both sides
9:43 Q3, expand first, then solve by factoring
14:00 Q4, completing the square
20:14 Q5, the quadratic formula
26:40 Q6
30:03 Q7
33:52 Q8
36:11 Q9
37:55 Q10
43:10 Q11
45:28 Q12
48:10 Q13
50:37 Q14
52:07 Q15, a special way to complete the square
59:00 Q16
1:00:30 Q17
1:02:55 Q18
1:06:03 Q19
1:12:49 Q20,
1:17:02 Q21, quadratic equation with complex solutions
1:20:12 Q22,
1:23:49 Q23,
1:32 44 Q24,
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