Question

Factorise x³-23x²+142x-120
put x= 1



plz solved fast and sand image

Answer 1

$1 \times 1 \times 1 - 23 \times 1 \times 1 + 142 \times 1 - 120$

$22 + 142 - 120$

$1 - 23 + 142 - 120$

Answer 2

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