
The Quadratic Formula (Real and Complex)
Presentation
•
Mathematics
•
9th - 11th Grade
•
Hard
Standards-aligned

Drew Besson
Used 3+ times
FREE Resource
5 Slides • 9 Questions
1
By Drew Besson
2
Fill in the Blanks
What is the complex conjugate of 4−5i ?
Type answer...
3
Fill in the Blanks
What is the complex conjugate of 7+3i ?
Type answer...
4
Multiple Choice
Simplify.
(−1+2i)÷(−3+4i)
25−12−16i
2511−2i
25−6i+8
252−14i
5
Multiple Choice
Simplify.
(3i)÷(4−3i)
2512i−9
103i−9
2524+18i
2512+9i
6
Multiple Choice
Simplify.
(−1−3i)÷(−i)
−i+3
−1−3i
2−4−3i
−9i
7
How do I solve quadratic equations using the quadratic formula?
8
The quadratic formula is a useful tool for finding solutions, particularly when an equation cannot be factored easily.
How do I solve quadratic equations using the quadratic formula?
9
How do I solve quadratic equations using the quadratic formula?
10
How do I solve quadratic equations using the quadratic formula?
11
Multiple Choice
Solve using the quadratic formula.
p2+4p−5=0
{1, −5}
{1}
{5,−2.5}
{1, −2.5}
12
Multiple Choice
Solve using the quadratic formula.
r2−2r+4=0
{1}
{1+i3, 1−i3}
{1.618, −0.618}
{21+i3, 21−i3}
13
Multiple Choice
Solve using the quadratic formula.
6n2−5n+5=0
25+5, 25−5
12−5+i95, 12−5−i95
2−5+5, 2−5−5
125+i95, 125−i95
14
Multiple Choice
Solve using the quadratic equation.
2v2+v−28=0
27, −4
4−1+57, 4−1−57
−1+6, −1−6
21+11, 21−11
By Drew Besson
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