যদি (x-1) (x+2) = 0 হয় তবে x =?

A -1 অথবা 2

B 1 এবং 2

C 1 অথবা -2

D 1 এবং -2

Solution

Correct Answer: Option C


(x-1)(x+2)=0
এখন x-1=0
∴x=1
∴x=-2

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