Area of a square garden is (x² + 10x + 25) sq. Units. Factorize and find the length of the sides of the garden

Igot a 80% on my final to os ya take these points in return

How do you pass the sat? i need sum pointers , and studying advice : (

Idislike this i just got a 0/3 on my quiz and i looked up the answers on here and saw one person that had the same questions/answers as me and i picked the ones that some other guys had put down i went to summit my quiz and got a 0/3 this just made my