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Math 9 Chapter 4
Algebraic Expressions and Algebraic Formulas-12
1.
a
3
+b
3
+c
3
-3abc
a) a
2
+ b
2
+ c
2
+2(a+b+c)
b) (a+b+c) (a
2
+b
2
+c
2
-ab-bc-ca)
c) (a+b)
3
+ 3ab(a+b)
d) (a+b)
3
� 3ab(a+b)
2.
(a+b+c)
2
a) (a+b)
3
� 3ab(a+b)
b) a
2
+ b
2
+ c
2
+2(a+b+c)
c) (a+b)
3
+ 3ab(a+b)
d) (a+b+c) (a
2
+b
2
+c
2
-ab-bc-ca)
3.
(a+b) (a-b) (a
2
+b
2
)
a) a
4
+ b
4
b) (a+b+c) (a
2
+b
2
+c
2
-ab-bc-ca)
c) a
4
- b
4
d) (a+b)
2
- 4ab
4.
(a-b)
2
a) (a+b)
3
� 3ab(a+b)
b) a
2
+ b
2
+ c
2
+2(a+b+c)
c) (a+b)
2
- 4ab
d) a
4
- b
4
5.
a
3
+b
3
a) (a+b)
2
- 4ab
b) (a+b)
3
+ 3ab(a+b)
c) a
4
- b
4
d) (a+b)
3
� 3ab(a+b)
6.
3x
a) One degree polynomial
b) Polynomial with coefficient as natural numbers.
c) Polynomial with one variable
d) 8 degree polynomial
7.
x+1/x
2
a) Irrational Expression
b) One degree polynomial
c) Polynomial with one variable
d) Rational Expression
8.
9y+3x+4
a) Polynomial with one variable
b) One degree polynomial
c) Rational Expression
d) Polynomial with coefficient as natural numbers.
9.
x
2
+yz
a) Polynomial of 3 variable
b) Linear Polynomial
c) Irrational Expression
d) Polynomial of 2 variables
10.
Ö
y + 1/
Ö
y
a) 8 degree polynomial
b) Rational Expression
c) One degree polynomial
d) Irrational Expression
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