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Factorisation
Class 8 made by Ms Simmi Khosla
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* Indicates required question
1. The common factor of 27ab and 25cd is:
*
2 points
1
-1
0
c
2. An irreducible factor of 36a*2 is
*
2 points
a*2
a
36a
12a
3. The number of factors of (X - Y)*2 is:
*
2 points
4
3
2
1
4. The degree of a constant polynomial 100 is:
*
2 points
0
10
100
1
5. The degree of the polynomial 200a*100 is:
*
2 points
200
100
1
0
6. The value of 100xy ÷ 10xy is:
*
2 points
10xy
10x
10y
10
7. The degree of the polynomial 10a*3 + 14a*3b*4 is:
*
2 points
3
4
7
10
8. X*3 - 121X is equal to
*
2 points
(X + 11)(X - 11)
X(X + 11)*2
X(X + 11)(X - 11)
None of these
9. Factorisation of x(y + z) + 3(y + z) is
*
2 points
x + y + z + 3
x(y + z) + 3
x + 3(y + z)
(x + 3)(y + z)
10. Factorisation of x*4 - 1 is:
*
2 points
(x*2 - 1)*2
(x*2 - 1)(x +1)(x + 1)
(x*2 - 1)(x - 1)(x - 1)
(x*2 + 1)(x - 1)(x + 1)
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