Math experts please simplify this thank you
2 answers:
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If 
is a root of the equation, q(x) = 6x3 + 19x2 – 15x – 28 then by the factor formula q() = 0; if that is not the case then cannot be a factor of the function.
Now, q() = 6()³ + 19()² – 15() – 28
=
Therefore Yuri, since q() ≠ 0 then it implies that is not a root of q(x).
Additionally, a root should be expressed in terms of x, thus the possible root ought to be written as x =, instead of just
Now, q(
=
Therefore Yuri, since q(
Additionally, a root should be expressed in terms of x, thus the possible root ought to be written as x =