Expressions and Equations
Problems
Problem : How many terms do the following expressions have?
a)
17x
2 + 4xy + 2y
b)
2y + 4 - 6y + x
2
c)
8y
6
d)
3xyz + 4yz + 2xz + z
2 - xz
Problem : In the expression
5x + 3x
2 - xy - 5z + z
3
, what is the coefficient of...
a)
x
?
b)
z
?
c)
z
3
?
d)
x
2
?
e)
xy
?
f)
z
2
?
Problem : Simplify 5x 2 + x 3 -4x 2 + x + 6 - 4 + x 2 - 3x by combining like terms.
Problem : Simplify 7y + 14xy - 3y - 4y - 6x 2 - 2xy by combining like terms.
x + 8x
2 -6 - x + 5x
2
x + 8
