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Math 9 Chapter 4
Algebraic Expressions and Algebraic Formulas-5
1.
a
2
+b
3
=
a) (a-b)(a
2
+b
2
-ab)
b) (a+b)(a
2
+b
2
-2ab)
c) (a+b)(a
2
+b
2
-ab)
d) (a+b)(a
2
+b
2
-ab)(a+b)
2.
a
3
-b
3
=
a) (a-b)(a
2
+ab+b
2
)
b) (a-b)(a
2
+2ab+b
2
)
c) (a-b)(a
2
+ab+2b
2
)
d) (a-b)(a
2
+ab+b
2
)
3.
The set of numbers whose elements can be replaced by a variable �x� is called a ____________set.
a) Domain
b) Monomial
c) Exponent
4.
A constant number which is multiplied with a variable is called ____________ of that variable.
a) Exponent
b) Co-efficient
c) Terms
5.
In 4x
2
, 2 is called ____________ of the variable x.
a) Exponent
b) Terms
c) Monomial
6.
The different parts of an algebraic expression joined by the operations of addition or subtraction are called ____________ of an algebraic expression.
a) Sum
b) Integer
c) Terms
7.
If all the coefficients in a polynomial are zero then the polynomial is called the _____________ polynomial.
a) Two
b) One
c) Zero
8.
A polynomial having degree 1 is called ________________ polynomial.
a) Linear
b) Rational
c) Integer
9.
An expression of the form P(x), where P(x) and Q(x) are
ยน
0 is called a ___________ expression. Q(x).
a) Additive Inverse
b) Rational
c) Quadratic
10.
a
3
+b
3
+c
3
-3abc =
a) (a+b-c)(a
2
+b
2
+c
2
-ab-bc-ca)
b) (a+b+c)(a
2
+b
2
+c
2
-ab-bc+ca)
c) (a+b+c)(a
2
+b
2
+c
2
-ab-bc-ca)
d) (a+b+c)(a
2
-b
2
+c
2
-ab-bc-ca)
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