Find the value of x 2 - 1/2 at x as -1​

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers