Question

Which of the following is the correct factored form of the given equation? x 2 + 3x - 4 = 0

Answer 1

For this case we must factor the following expression:

$x ^ 2 + 3x-4 = 0$

We must find two numbers that when multiplied give as result -4 and when summed give as result +3. These numbers are +4 and -1:

$+ 4-1 = + 3\\4 (-1) = - 4$

Then, the factorization is given by:

$(x + 4) (x-1) = 0$

Answer:

$(x + 4) (x-1) = 0$

Answer 2

It is (x+4)(x-1) because 4 times -1 is -4 and 4-1 is 3.hope this helps