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Mathematics
Mathematics
Problem
Factorise
5
x
3
+
20
x
5x^3+20x
5
x
3
+
20
x
completely. a)
x
(
x
2
+
4
)
x(x^{2}+4)
x
(
x
2
+
4
)
b)
5
x
(
x
−
2
)
(
x
+
2
)
5x(x-2)(x+2)
5
x
(
x
−
2
)
(
x
+
2
)
c)
5
x
(
x
2
+
4
)
5x(x^{2}+4)
5
x
(
x
2
+
4
)
d)
5
(
x
3
+
4
x
)
5(x^{3}+4x)
5
(
x
3
+
4
x
)
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