(All Steps) In solving the equation (x + 1)(x - 2) = 54, Eric stated that the solution would be x + 1 = 54 => x = 53 or (x - 2) = 54 => x = 56 However,
Question:
In solving the equation (x + 1)(x – 2) = 54, Eric stated that the solution would be
x + 1 = 54 => x = 53
or
(x – 2) = 54 => x = 56
However, at least one of these solutions fails to work when substituted back into the original equation. Why is that? Please help Eric to understand better; solve the problem yourself, and explain your reasoning.
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