The statement that is true about (x + 1)(x - 7) = 15 is; None of the above
When we are writing quadratic equations, they could come in 2 or 3 forms. Now, the form it has come in the question is more like factor form.
Now, in quadratic equations, when we have;
(x + a)(x - b) = 0
It means that;
x + a = 0 and x - b = 0
Thus;
Looking at the options none of them are correct.
Read more about factors of quadratic equations at; https://brainly.com/question/1214333
