Question

7. The area of a rectangle is 6db + st"a and its length is 2ab. The perimeter of the rectangle is
(d) 6a+ 46 -4ab
(c) Bat66-4ab
(d) (x-4)
Fise the expressions and find the value of (x - 16) - G + 2x + 4x + 8). The value is
IL Find the least number that must be added to 6683 to make it a perfect square number. Find the square root
7
(6) 3046-206
b) (x - 2)
*+23
2
then the value of x is
5
2 12
10. Find three rational numbers between
2
and-
3
(c) 2 + 2)
2. **2+3x = 543–3)+
(d) 7
(c) 8
ASSESSMENT ZONE
of the perfect square number so obtained.
12. Find the sum of the digits of the smallest mumber by which 8748 must be divided, so that the quotient
becomes a perfect cube.
13. What must be subtracted from * + 6x + 13x2 + 13x + 8 so that the resulting polynomial is exactly divisible
by - 3x - 2)
14. (a) Simplify: (2.50 - 1.56)2-(1.5a - 2.5b)
5 Factorise y + 490 - 32
15. A line is divided into three parts. The first part is two-thirds the length of the second part, the third part is
om shorter than the first part and 2 cm shorter than the second part. What is the length of the line?
2​

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