Can some one explain Quadratic Equations to me, i to get how to slove them, could you show me how it works on this problem, y^2=2y+63, thanks soo much :)​

Abag has more green balls than blue balls, and there is at least one blue ball. let bb represent the number of blue balls and let gg represent the number of green balls. let's compare the expressions 2b2b and b + gb+g. which statement is correct? choose 1

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Three times the sum of a number and seven is negative thirty-six. what is the number?