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1
Express the following as the product of two factors:
(4x+1)(4x+!)
(2x-1)(2x-1)
(2x+1)(2x-1)
(2x+1)(2x+1)
2
Find the nature of the roots of
:Roots are real and equal
Roots are imaginary or complex.
Roots are real and unequal
None of these
3
4
Anup is four times as old as his son. If the sum of their ages is 50, find their ages.
5 and 40 years.
12 , 48 years
10 and 40 years
7 and 28 years.
5
if the roots of the quadratic equations are real and equal , then:
6
Factorise: 5 - 2x - 6xy + 15y
(1+2y)(4-3x)
(1+3y)(5-2x)
(1+2y)(4-2x)
(1-3y(2-2x)
7
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
8
The area of a rectangle is . The length of the rectangle is 2 cm more than its breath. Which of the following quadratic equations represents this situation?
9
has
Four real roots
Two real roots
No real roots
One real root.
10
If the three numbers are in the ratio 2:3:5, so that the sum of their squares is 608. Find the numbers respectively.
8,12, 20
12, 8, 20
20, 8, 12
20,12,8
11
Factorise:
(1+2x)(5x+3y)
(1+3x)(4x+5y)
(1+4x)(5x+2y)
12
Factorize:
13
16b(a-3b)(a-2b)
14b(a+2b)(a-3b)
16b(a+2b)(a-2b)
16a(a+3b)(a-4b)
14
The sum of ages of a son and his father is 35 years and the product of their ages is 150. Find their present ages
10 years and 25 years
5 years and 30 years
2 years, 33 years
12years, 23 years.
15
Express the following as a quadratic equation.
No, it is not a quadratic equation
16
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
17
Which of the following are the factors of
x(1-x)
x(x-1)(x+1)
x(1-x)(1+x)
18
On factorisation is not equal to ______________________
19
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?
20
Find the value of