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Simplify this expression. 9x(5x2) A) 14x2 B) 14x3 C) 45x2 D) 45x3
asked
Oct 11, 2018
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2
votes
Simplify this expression. 9x(5x2)
A) 14x2
B) 14x3
C) 45x2
D) 45x3
Mathematics
high-school
GCSDC
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GCSDC
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1
Answer
5
votes
The answer is:D)
Move
xx.
9
(
5
(
x
x2
)
)
9
5
x
x2
Use the power rule
am
an
=
a
m+n
am
an
=
a
m+n
to combine exponents.
9
(
5
x
1+2
)
9
5
x
1+2
Add
11
and
22
to get
33
.
9
(
5
x3
)
9
5
x3
Multiply
55
by
99
to get
4545
.
45
x
3
Nicolas Braun
answered
Oct 16, 2018
by
Nicolas Braun
8.0k
points
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