IB Mathematics Analysis and Approaches Quiz
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NUMBER AND ALGEBRA
Question 1
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Solve the equation
log
2
(
x
)
+
log
2
(
x
−
2
)
=
3
\log_2(x) + \log_2(x-2) = 3
lo
g
2
(
x
)
+
lo
g
2
(
x
−
2
)
=
3
.
A
x
=
−
2
,
4
x = -2, 4
x
=
−
2
,
4
B
x
=
3
x = 3
x
=
3
C
x
=
4
x = 4
x
=
4
D
x
=
5
x = 5
x
=
5
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