determine the value k so that x-4 is a factor of i know that answer is going o be 12, i got it by dividing x-4 into but im not sure about the remainder, bcz i got k+48 does that change the answer. has a factor of (m-k+3) what is the other
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to factor this with (x-4) being a factor we would get (x-4)(x+y)= and since the coefficients have to match up, and -4y=k From (-4+y)=8 we see y=12, so -4(12)=-48=k and you can see that which is the difference of two perfect squares and so
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