Question

We could have also got this by dividing p(x) by x - 1.
Now x? – 22x + 120 can be factorised either by splitting the middle term or by using
the Factor theorem. By splitting the middle term, we have:
x? - 22.x + 120 = x2 - 12x – 10x + 120
= x(x - 12) – 10(x - 12)
= (x – 12) (x - 10)
x - 23x² – 142x – 120 = (x - 1)(x - 10)(x - 12)
ve So.
EXERCISE 2.4
th
1.
Determine which of the following polynomials has (x + 1) a factor :
(i) r + x + x + 1
(ii) x + x + x² + x + 1
h
(ii) x4 + 3x + 3x² + x + 1
(iv) x– x - (2 + V2)x + v2
2
Ilse the Facto
ТА​

Answer 1

Answer:

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