Simplify [40 + 42 – 2
3
] x 3-2
2. Simplify ((–2)3
)
2 + 5-3 ÷ 5-5 – (1/2)0
and write in exponential form
3. Express (125)-4
as a power with base 5.
4. By what number should [(–5/2)3
]
-3 be multiplied to get (–2/5)5
5. Simplify [2-1 +30 + 51 + 72 + 93
] ÷ (2/3)-1 6.If (12/13)4 x (12/13)8 = (12/13)2x , find x
7. Find the value of (5n+2 – 5
n+1)/5n+3 8. Simplify (2/5)-3 x (2/5)2 x {(5/2)2}
-2
9. By what number should (–3/2)-4 be divided to get (–2/3)3
10. Simplify ((23 x 34
)
3 x (–5)3
)/(60 x (–2)5
)
11. Simplify (–25)3 x (1/5)-4
and express the result in power notation with positive exponent.
12. If 52x-1=1/(5)3x-9
, find x
Answers
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Answer:
1 59
2 -6
4 -2
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