Evaluate: 2×(9)¾×(9)⅔
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Step-by-step explanation:
Breaking
9
3
2
down into its component parts
3
2
is the same as
3
×
1
2
which is the same as
1
2
×
3
so
9
3
2
is the same as
9
1
2
×
3
Write this as:
(
9
1
2
)
3
Consider the part of
9
1
2
This is the same as
√
9
=
3
So
(
9
1
2
)
3
=
(
√
9
)
3
=
3
3
=
27
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
However, it true to say that:
√
9
=
±
3
and
(
±
3
)
3
=
±
27
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