Each of the following quadratic equations can be solved by factoring. Which equation has only one distinct solution?(1 point) Responses x2+4x+4=0 x squared plus 4 x plus 4 equals 0 x2+5x+4=0 x squared plus 5 x plus 4 equals 0 x2−4=0 x squared minus 4 equals 0 x2−5x+4=0

The quadratic equation x^2+4x+4=0 can be factored as (x+2)(x+2)=0, which means it has only one distinct solution of x=-2.