10. Simplify and give
reasons (4/7)-2 ×(7/4)–7
Answers
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0
Answer:
(
7
4
)
−5
×(
4
7
)
−7
=(
7
4
)
−5
×(
7
4
)
7
using a
−m
=
a
m
1
=(
7
4
)
−5+7
using a
m
×a
n
=a
m+n
=
7
2
4
2
using (
b
a
)
m
=
b
m
a
m
=
49
16
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