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प्रश्न
Factorise the following.
x2 – 17x + 60
उत्तर
We have,
x2 – 17x + 60 = x2 – (12 + 5)x + 60
= x2 – 12x – 5x + 60
= x(x – 12) – 5(x – 12)
= (x – 12)(x – 5)
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