The Total solution for NCERT class 6-12
-3 is a zero of polynomial f(x) = x2 +11x + kIt will satisfy the polynomialf (x) = 0 => f(-3) = 0Now x2 + 11x + k = 0=> (-3)2+ 11 x (-3) + k = 0⇒ 9 – 33+ k = 0⇒ -24 +k = 0⇒ k = 24