4(3x+2) = 4(2x+3)+4x does this have one solution, Infinitely many solutions or no solution

In factoring by grouping, what would you have for step 3 for the following? step 1: x^3 +5x^2 +4x+20 step 2: x^2 (x+5)+4(x+5) step 3: ?

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

Ineed if you could explain and give me the answer you! this needs done