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Factor theorem、Remainder theorem--Edexcel IAL Mathematics Flashcards
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Front
You are asked to check if
(
2
x
−
1
)
is a factor of a polynomial
f
(
x
)
.
Which value should you substitute into
f
(
x
)
?
Back
x
=
2
1
Evaluate
f
(
2
1
)
. If the result is 0, it is a factor.
1/3
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You are asked to check if
(
2
x
−
1
)
is a factor of a polynomial
f
(
x
)
.
Which value should you substitute into
f
(
x
)
?
x
=
2
1
Evaluate
f
(
2
1
)
. If the result is 0, it is a factor.
True or False?
If
f
(
2
)
=
0
, then
(
x
+
2
)
is a factor of
f
(
x
)
.
❌ False
✅ Correct Deduction: If
f
(
2
)
=
0
, then
(
x
−
2
)
is a factor.
When finding the remainder of
f
(
x
)
divided by
(
a
x
+
b
)
using the Remainder Theorem, what value do you calculate?
f
(
−
a
b
)
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Simple Algebraic Division (Dividing by ax+b or ax-b)
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