Question

factorise X - 22 x minus 21 is equal to zero​

Answer 1

Answer:

Step-by-step explanation:

x-22x-21= 0

-21x=21

x = 21/-21

x= -1

Answer 2

Answer:-

Let's factorise

$\sf \: x - 22x - 21 = 0$

$\sf \longrightarrow - 21x = 21$

$\sf \longrightarrow x = \frac{21}{ - 21}$

$\sf \longrightarrow - 1$

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