If in the triangle ABC, b^2=(c-a)^2+ca. then m(A)=?​

And explain how you got it so i can understand future problems : 3

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number tt of tokens james has is a function of gg, the number of games he plays

If x-1 and x+3 are the factors of x3+10x2+ax+b find a and b