Question
Factorise:
x2 - 26x + 133
x2 - 26x + 133
✓
Answer
x2 - 26x + 133
= x2 - 19x - 7x + 133
= x(x - 19) - 7(x - 19)
= (x - 19)(x - 7)
= x2 - 19x - 7x + 133
= x(x - 19) - 7(x - 19)
= (x - 19)(x - 7)
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