Solve the inequaility -24

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions. a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 9 + 12x + 4x^2

What is the simplified form of square root of 400 to the 100th power ?