4. Write the coefficient of x² in each of the following 4. Write the coefficient of x² in each of the following June 28, 2021 Category: Chapter 2 - Polynomials , Maths , NCERT Class 9 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related 4. Write the coefficient of x² in each of the following23. Factorise: (i) x^2 + 9x + 18Write whether the following statements are true or false. Justify your answers. 5. If the coefficient of x^2 and the constant term of a quadratic equation have opposite signs, then the quadratic equation has real roots.