4.2 Quadratic equations and inequations — ગણિત ધોરણ 11 સાયન્સ — Question

$ \Rightarrow {x^2} - 4x + 4 - x + 2 - 6 = 0$

$ \Rightarrow \,\,{x^2} - 5x = 0$

$ \Rightarrow \,\,x(x - 5) = 0$  $ \Rightarrow \,\,x = 0$

જ્યારે $,\,x \ge 2\,;$ ${(x - 2)^2} + (x - 2)\, - 6 = 0$

$ \Rightarrow {x^2} - 4x + 4 + x - 2 - 6 = 0$

$ \Rightarrow \,\,{x^2} - 3x - 4 = 0$

$ \Rightarrow \,\,{x^2} - 4x + x - 4 = 0$

$ \Rightarrow \,(x - 4)(x + 1) = 0$ 

$ \Rightarrow \,x = 4$