Question

check whether the following are quadratic equations x3+6x2+12x+8=(x+2)3​

Answer 1

Answer:

IT IS NOT A QUADRATIC EQUATION

Step-by-step explanation:

(ii) Since x(x + 1) + 8 = x2 + x + 8 and (x + 2)(x – 2) = x2 – 4 Therefore, x2 + x + 8 = x2 – 4 i.e., x + 12 = 0 It is not of the form ax2 + bx + c = 0. Therefore, the given equation is not a quadratic equation.Read more on Sarthaks.com - https://www.sarthaks.com/251895/check-whether-the-following-are-quadratic-equations-i-x-2-2-1-2x-3-ii-x-x-1-8-x-2-x-2