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Exponents
Class 8
Exercise/MCQ Set 3
1. Simplify :- (81)
-1
x 3
4
3
0
1
9
2. Simplify :- (5
n+2
- 5
n+1
) ÷ 5
n + 3
4/25
25
25/4
5
3. Simplify :- (x
m+n
× x
n+1
× x
1+m
) ÷ (x
m
× x
n
× x
1
)
2
0
x
1
2
4. Simplify :- 3 x (25)
1/2
- 5 x (64)
1/6
+ (64)
1/3
+ 2 x (8/27)
-1/3
6
12
7
5
5. Simplify :- [x
5+n
× (x
2
)
3n + 1
] ÷ x
7n-2
x8
x7
x9
xn
6. By what number should (2/7)
-2
be multiplied so that the product is equal to (8/7)
-1
2
1/7
9
1/14
7. Simplify :- [(729)
-2
]
-3
÷ [{(27)
2
}
3
]
2
1
3
-1
2
8. Solve : (6 + 4 + 2)
0
12
6
4
1
9. when we simplify this (ab)
m-n
. (bc)
n-1
. (ca)
1-m
we get a
1-n
b
m-1
c
n-m
True
False
10. Solve for x :- (2/5)
x-2
= (25/4)
3
4
-4
3
2
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Exercise/MCQ Set 1
Exercise/MCQ Set 2
Exercise/MCQ Set 4
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time: 0.2405989170