Question:
sir, how can we know that (x-1)(x-2)=0 then x= 1 and x= 2
Answer:
Given, (x - 1)*(x - 2) = 0
It means both (x - 1) and (x - 2) equals to zero
=> x - 1 = 0 and x - 2 = 0
=> x = 1 and x = 2
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