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Mathematics
Mathematics
Problem
Consider the polynomial
f
(
x
)
=
4
x
3
−
8
x
2
−
12
x
f(x)=4x^3 - 8x^2 - 12x
f
(
x
)
=
4
x
3
−
8
x
2
−
12
x
. a. (i) Factorise
f
(
x
)
f(x)
f
(
x
)
completely. b. (ii) Using the factorised form, write down all real roots of the equation
f
(
x
)
=
0
f(x)=0
f
(
x
)
=
0
.
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