C. 5w2 2. Which of the following is a quadratic equation? a. 3m-7 = 12 b.-5n2 - 4n-1 c. 2x2 - 7x > 3 3. In the quadratic equation 5w2 +9w - 10 = 10, which is the quadratic term? a. W b. 9w 4. It is a polynomial equation of degree two that can be written in the form ax? numbers and a *0. a, linear equation b. linear inequality c. quadratic equation 5. This value can be used to describe the nature of the roots of a quadratice a. sum of the roots b. negative value c. discriminant 6. Which of the following quadratic equation can be solved easily by extract a. x2 - 4x - 45 = 0 b. x2 + 5x - 24 C. x2 - 36 = 0 7. Which of the following values of x make the equation x2 +78-18 = 0 tru 1.-9 II. 2 111.9 a. I and II b. ll and IU c. I and III 8. Which of the following quadratic equations has no real roots? a. 2x2 + 4x = 3 b. t2-8-4 = 0 c. 352-28 = -5 9. Which of the following quadratic equations is a standard form? a, 3x2+2x = -5 b. 2x2 = 0 c. 2x+5= w need help​