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Mathematics
Mathematics
Problem
Factor each of the following expressions: a.
t
2
−
49
t^2 - 49
t
2
−
49
b.
36
−
9
x
2
36 - 9x^2
36
−
9
x
2
c.
121
a
2
b
4
−
c
2
121a^2b^4 - c^2
121
a
2
b
4
−
c
2
d.
800
x
4
−
72
x
2
y
2
800x^4 - 72x^2y^2
800
x
4
−
72
x
2
y
2
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