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1
Factorize:
(x-z)(x-z)
(Y-Z)(Y-Z)
(X+Z)(X+Z)
(X+Z)(X-Z)
2
A nu7mber consists of two digits whose sum is 9. If 27 is subtracted from the original number. its digits are interchanged. Then the original number is___________________.
53
45
92
63
3
Factorise: 5 - 2x - 6xy + 15y
(1+2y)(4-3x)
(1+3y)(5-2x)
(1+2y)(4-2x)
(1-3y(2-2x)
4
Express the folllowing as the product of two factors:
(3x-2)(3x-2)
(2x-3)(2x-3)
(4x-3)(4x-3)
(3x-4)(3x-4)
5
Solve the quadratic equation?
3 0r 9
6 or 3
10 0r 3
1 or 5
6
If the quadratic equation has no real roots, then:
7
Find the value of discriminant for the equation
-1
49
None of these
8
9
Express the following as a quadratic equation :
10
If are the roots of a quadratic equation such that and ,then the equation is:
11
5 years ago a man was 7 times as old as his son . He will be 3 times as old as his son after 5 years. Find their present ages.
20 , 70 years
30 , 20 years
10 , 40 years
10 , 30 years
12
Factors of
13
Factorise :
(x-1) (x+y)
(x+1) (x+y)
(x-1) (x-y)
none of these
14
Factorize the following:
15
A two digit number such that the product of its digits is 21. When 36 is subtracted from the number the digits are interchanged. Find the digit at the tens place.
77
-7
NONE F THESE
16
Find the common factor:
8xy
4xy
7xy
6xy
17
The base of a right angled triangle is 2cm less than the perpendicular. The length of, the hypotenuse is 10 cm. Which of the following equations represents this situation?
18
The age of a man is same as his wife's age with the digits reversed. Then sum of their ages is 99 years and the man is 9 years older than his wife. The age of man and his wife is
50 years, 45 years
45 years, 54 years
54 years, 44 years
44 years, 50 years
19
Find the value of
20
The sum and the difference of two expressions are respectively, then their LCM would be equal to :