Simplify and express the result in power notation with positive exponent.2-3x (-7)-3.
Answers
Answered by
0
Answer:
(i) (−4)
5
÷(−4)
8
=
(−4)
8
(−4)
5
=(−4)
5−8
=(−4)
−3
=
(−4)
3
1
(ii) (
2
3
1
)
2
=
2
3×2
1
=
2
6
1
(iii) (−3)
4
×(
3
5
)
4
=(−1)
4
×(3)
4
×(
3
5
)
4
=(−1)
4
×5
4
=5
4
(iv) (3
−7
÷3
−10
)×3
−5
=(
3
−10
3
−7
)×(3)
−5
=3
−7+10
×3
−5
=3
3−5
=3
−2
=
3
2
1
(v) 2
−3
×(−7)
(−3)
=
2
3
1
×
(−7)
3
1
=(
2×(−7)
1
)
3
=
(−14)
3
1
Answered by
2
Step-by-step explanation:
(2-³)×(-7)-³
(1/2³)×(1/-7³). {a-ⁿ=1/aⁿ}
=(1/8)×(-1/343)
= -1/8×343
= -1/2744
= (-1)³/(14)³
= (-1/14)³
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