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Math 9 Chapter 5 Factorization-3
1.
HCF of (x+2y) and (x
2
_ 4y
2
) is ______________.
a) x/2y
b) x+2y
c) x-2y
2.
HCF of x
2
+3x+2 and x
2
+4x+3 is ______________.
a) x-1
b) x/1
c) x+1
3.
HCF of (x
2
-9), (x+3)
2
is ________________.
a) x+3
b) x-3
c) x/3
4.
LCM of (x+y) and x
2
-y
2
is _____________.
a) x
2
-y
-2
b) x
-2
-y
2
c) x
2
-y
2
5.
LCM of x
2
-x-2 and x
2
-3x+2 is _______________.
a) (x-2)(x-1)(x-1)
b) (x+2)(x-1)(x+1)
c) (x-2)(x-1)(x+1)
6.
Simplified form of 1/x-1 + 1/x+1 = ________________.
a) 2x / x
2
-1
b) 2x / x
2
1
c) 2x / x
-2
-1
7.
Simplified form of [(x-y) (x
2
+xy+y
2
)] � (x
3
-y
3
) is ___________.
a) -1
b) 2
c) 1
8.
Square root of x
2
+18x+81 is _________________.
a) x+9
b) x/9
c) x * 9
9.
Square root of 64x
4
y
2
is ____________________.
a) 8x
3
y
b) 8x
2
y
c) 8x
-2
y
10.
ac +bc + ad + bd = (a+b)( __________ ).
a) a+c
b) a+d
c) b+d
d) c+d
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