Solving Quadratic Equations Using The Quadratic Formula Worksheet - University Of East Anglia Page 2
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1
22.
Find the discriminant of these equations and use it to decide the number and type of roots
each has. Use this information to determine how many times the corresponding quadratic
function cut the x-axis. Find the value of the real roots when possible.
x
x
2
2
3
x
6
0
(a)
(b)
x
2
1
0
x
2
2
(c)
x
6
x
25
0
(d)
0
15
3
4
x
x
2
2
(e)
9
9
x
3
3
x
(f)
x
3
10
3
x
1
x
(g)
x
(h)
x
x
4
4
x
This worksheet is one of a series on
mathematics produced by the
Dean of
Students' Office
at the University of East
Anglia.
Scan the QR-code with a smartphone to go
to the
Learning Enhancement Team
website.
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