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Mathematics
Mathematics
Problem
Find all solutions to each equation below. a.
2
x
2
+
12
=
11
x
2x^2 + 12 = 11x
2
x
2
+
12
=
11
x
b.
4
(
3
x
2
−
13
x
+
9
)
=
1
4(3x^2 - 13x + 9) = 1
4
(
3
x
2
−
13
x
+
9
)
=
1
c.
9
t
2
=
2
t
+
1
3
9t^2 = 2t + \frac{1}{3}
9
t
2
=
2
t
+
3
1
d.
60
−
139
r
=
12
r
2
60 - 139r = 12r^2
60
−
139
r
=
12
r
2
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