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Math 9 Chapter 4
Algebraic Expressions and Algebraic Formulas-13
1.
6x
3
+y
3
+3x
7
y-xy
2
a) 8 degree polynomial
b) One degree polynomial
c) Rational Expression
d) Polynomial with one variable
2.
(xy � 1 ) (x
2
y
2
+1+ 1/ xy ) x
2
y
2
a) 2x
3
b) x
3
+ 9x +8
c) x
3
y
3
� 1/ x
3
y
3
d) - 2x
2
3.
x + 1/x = 2
a) x
3
y
3
� 1/ x
3
y
3
b) x
3
+ 9x +8
c) 2x
3
d) x
2
+1/ x
2
= 2
4.
(x+8) (x+1)
a) 2x
3
b) x
3
+ 9x +8
c) - 2x
2
d) x
2
+1/x
2
= 2
5.
x+1/ x = 3
a) x
3
+ 9x +8
b) - 2x
2
c) 2x
3
d) x
3
+1/ x
3
= 18
6.
(-8x
5
) �(-4x
3
)
a) 2x
3
b) x
2
+1/x
2
= 2
c) - 2x
2
d) x
3
+ 9x +8
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