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Mathematics
Mathematics
Problem
 Divide and simplify completely:
x
2
−
4
x
x
2
−
16
÷
x
2
−
3
x
x
2
+
5
x
+
4
\frac{x^2 - 4x}{x^2 - 16} \div \frac{x^2 - 3x}{x^2 + 5x + 4}
x
2
−
16
x
2
−
4
x
÷
x
2
+
5
x
+
4
x
2
−
3
x
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