Answer:
The answer is B.
Step-by-step explanation:
Instead of solving each equation, simply think about it alternatively.
Recall that quadratic equations can also be written as: [tex](x-a)(x-b)[/tex], where [tex]a[/tex] and [tex]b[/tex] are the solutions.
We know that 1 and -3 are solutions, so we can substitute them in for [tex]a[/tex] and [tex]b[/tex].
Thus, we have:
[tex](x-(1))(x-(-3))[/tex]
[tex](x-1)(x+3)[/tex]
Now, expand:
[tex]x^2+3x-x-3[/tex]
[tex]x^2+2x-3[/tex]
The answer is B.
