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Math 9 Chapter 4
Algebraic Expressions and Algebraic Formulas-10
1.
Ö
3 x
2
- x + 7 is a polynomial with coefficients as ___________ numbers.
a) Natural Numbers
b) Irrational numbers
c) Real Numbers
d) Rational Numbers
2.
If a+b = 5, a-b=3 then 4ab= ________________.
a) 2
b) 8
c) 34
d) 16
3.
An algebraic expression consisting of one or more terms, in each of which exponent of variable is zero or positive integer, it is called _______________.
a) Irrational Expression
b) Polynomial
c) Rational Expression
d) Monomial
4.
If a+b=3, a-b=2 then a
2
-b
2
= _____________
a) 13
b) 5
c) 2
d) 6
5.
The expression xy + y
2
z /x + xz + 4 is ______________.
a) Polynomial of 1 variable
b) Not a polynomial
c) Polynomial of 3 variables
d) Polynomial of 2 variables
e) Polynomial of 4 variables
6.
What will be added to complete the square of y
2
+16 is _______________.
a) 8y
b) 4y
c) 2y
d) 6y
7.
If a /d x + b /c= 0, then x = _____________
a) a/d
b) � bd/ac
c) -b/c
d) -ac/bd
e) -b/c + a/d
8.
According to _______________, ab = ba.
a) Closure property
b) Commutative property
c) Distributive property
d) Associative Property
9.
If (x-1) is a factor of (x
3
+ x
2
- 10x + 8) then remainder is ________.
a) 2
b) -1
c) 1
d) 0
10.
If a=1, b=1, c=2 then the value of 3a
2
+2b
2
+c /2 is _______________.
a) 3
b) 4
c) 5
d) 6
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