Question

b) 3
c) 2
I. Choose the correct answer :-
14x1=14
1. If the area of a rectangular land is (a2-b2) sq units, whose breadth is (a-b)
then, its length is
a) a-b
b) a+b
c) a2-b d) (a+b) 2
2. The product of 7pand (2p) is_
a) 14p12 b) 28p?
c) 14p2 d) 14p3
3. The value of 5x(x2-y2+xy) is_
a) 5x3-5xy2+5x²y b) 20x²y
c) 5x3
d) 5x-y2
4. The value of (3a) is _
a) 6a
b) 6a2 c) 9a
d) 9a
5. If x2-y2=16 and x+y=8 then x-y is __.
a) 8
d) 1
6. Factors of 4-m2 are
a) (2+m) (2+m) b) (2-m) (2-m) c) (2+m) (2-m) d) (4+m) (4-m)
7. The factors of x2-5x+6 are (x-2)(x-p) then the value of p is .
a) -3
b) 3
c) 2
d)-2
8. The value of x in x+5=12 is _
a) 7
b) 17
c) 10
d) 12
9. The linear equation in one variable has solution.
a) No b) 1
c) 2
10. Sum of a number and it's half is 30,then the number is __
a) 15
b) 20
c) 25
d) 40
d) many​

Answer 1

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