AM-449
Remainder and factor theorems
A Math · Secondary 3 · Medium · Remainder and factor theorems
The polynomial function is
P(x)=x3−4x2−7x+10. Given that
x=1 is a root of
P(x)=0, factorise
P(x) completely.
- (x−1)(x−5)(x+2)
- (x+1)(x−5)(x+2)
- (x−1)(x+5)(x−2)
- (x+1)(x+5)(x−2)
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