SOLUTION: In solving the equation (x + 4)(x – 7) = -24, Eric stated that the solution would be
x + 4 = -24 => x = -28
or
(x – 7) = -24 => x = -17
However, at least one of these solutions
Algebra ->
Polynomials-and-rational-expressions
-> SOLUTION: In solving the equation (x + 4)(x – 7) = -24, Eric stated that the solution would be
x + 4 = -24 => x = -28
or
(x – 7) = -24 => x = -17
However, at least one of these solutions
Log On
Question 552386: In solving the equation (x + 4)(x – 7) = -24, Eric stated that the solution would be
x + 4 = -24 => x = -28
or
(x – 7) = -24 => x = -17
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. Answer by richard1234(7193) (Show Source):
