Question

I need help is it A B C or D

Answer 1

We evaluate b^2 - 4ac.  If the answer is positive, then there are two real solutions.  If it is zero, there is one real solution.  If it is negative, there are 2 complex solutions.  In this equation, a = 1, b = 5, c = 7.  Now we plug in the numbers.

$5^{2}-4*1*7=1$

Because this answer is positive, there are two real solutions.

Answer 2

You need to factor this out. When you do this, though ugly, there are two solutions.