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๐Ÿงต I dont really get the solution on this one

op No. 16282374

It states that after we substitute 2 for x we can see that (x-2) is a root of Q, but I dont really see why. After we substitute we get P = 1*Q, how does this prove anything?

Anonymous No. 16282375

>>16282374
0 = P(2) = 1*Q(2)

Anonymous No. 16282376

>>16282374
You get (2-1)(2-2)=1*0=0. retarded questions belong in /mg/

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op No. 16282382

>>16282376
y u gotta be mean

op No. 16282385

>>16282375
thanks