the expression 1/2 x^2-3 can be rewritten as 1/2 (x-d) (x+d) where d is a positive constant. What is the value of d?

Which of these people has balanced their checkbook correctly? oa. gary: the balance in his check register is $500 and the balance in his bank statement is $500. b. gail: the balance in her check register is $400 and the balance in her bank statement is $500. c. gavin: the balance in his check register is $500 and the balance in his bank statement is $510.

Find a third-degree polynomial equation with rational coefficients that has roots -2 and 6+i

If f(x)=3 over x+2 - square root x-3 then f(7)=