If (x + 1)(x - 3) = 5, then which of the following statements is true?
x + 1 = 0 or x - 3 = 0
x + 1 = 5 or x - 3 = 5
x - 4 = 0 or x + 2 = 0

Question

If (x + 1)(x - 3) = 5, then which of the following statements is true?
x + 1 = 0 or x - 3 = 0
x + 1 = 5 or x - 3 = 5
x - 4 = 0 or x + 2 = 0

kropot72 · Answer

None of the statements is true. Try testing each to confirm

anonymous · Answer

x+1=5or x-3=5~~~~ should one of them be 1

callisto · Answer

(x + 1)(x - 3) = 5
x^2 -2x -3 =5
x^2 -2x -8 = 0
(x-4)(x+2)=0
(x-4)=0   or   (x+2)=0

anonymous · Answer

x - 4 = 0 or x + 2 = 0

anonymous · Answer

this is true one

anonymous · Answer

yeh its a good trip

anonymous · Answer

@kropot72

anonymous · Answer

test it

callisto · Answer

@myko Sorry, but have you ever thought about typing the steps?

anonymous · Answer

it's evident:
x - 4 = 0 or x + 2 = 0
is same as:
x=4 and x=-2
plug the values in the equation to check

callisto · Answer

I'm not having doubts on your answer. But you should show your workings when you give the answer.