Ask a New Question

solving the equation (x+4)(x-4)=9 Eric stated that the solution would be x+4=9>x=5 or (x-4)=9=>x=13

However one of these solution fails to work when subsituted back to the original equation. Why?olve and explain the reasoning. Can someone please help me?

Ask a New Question or answer this question.

Similar Questions

In solving the equation (x-1)(x+2)=30. Eric stated that the solution would bex-1=30¨T¡úx=31 or(x-2)¨T30¨T¡úx=32 However,
1. 1 answer
in solving the equation (x +2)(x - 2) = 32 eric stated the solution to be x + 2 = 32 => x = 30 or x- 2 = 32 => x = 34. however
1. 1 answer
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 =>
1. 1 answer
1. In solving the equation (x + 3)(x + 1) = 48, Eric stated that the solution would bex + 3 = 48 => x = 45 or (x + 1) = 48 => x
1. 1 answer

more similar questions