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Mathematics
Mathematics
Problem
Use completing the square to solve for the zeroes of the following functions: a.
f
(
x
)
=
−
1
2
(
x
−
7
)
2
−
8
f(x) = -\frac{1}{2}(x - 7)^2 - 8
f
(
x
)
=
−
2
1
(
x
−
7
)
2
−
8
b.
f
(
x
)
=
2
x
2
−
8
x
−
10
f(x) = 2x^2 - 8x - 10
f
(
x
)
=
2
x
2
−
8
x
−
10
c.
f
(
x
)
=
5
(
x
−
1
)
2
+
45
f(x) = 5(x - 1)^2 + 45
f
(
x
)
=
5
(
x
−
1
)
2
+
45
d.
f
(
x
)
=
−
x
2
+
4
x
+
1
f(x) = -x^2 + 4x + 1
f
(
x
)
=
−
x
2
+
4
x
+
1
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