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Problem
Problem
For each of the following quadratic equations: Find the sum and product of the roots. Check your answer by solving the quadratic. a.
x
2
+
4
x
−
21
=
0
x^2 + 4x - 21 = 0
x
2
+
4
x
−
21
=
0
b.
x
2
−
5
x
+
5
=
0
x^2 - 5x + 5 = 0
x
2
−
5
x
+
5
=
0
c.
4
x
2
−
12
x
+
5
=
0
4x^2 - 12x + 5 = 0
4
x
2
−
12
x
+
5
=
0
d.
3
x
2
−
4
x
−
2
=
0
3x^2 - 4x - 2 = 0
3
x
2
−
4
x
−
2
=
0
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