Question

*Which of the following options will be useful, to factorise the quadratic trinomial x² -11x + 18?*1️⃣ 18 = 9 ✕ 22️⃣ 18 = - 6 ✕ - 33️⃣ 18 = - 9 ✕ - 24️⃣ 18 = 6 ✕ 3​

Answer 1

Answer:

x^2-9x-2x+18=x (x-9)-2 (x-9)=(x-9)(x-2)

so 3rd opinion is correct

Answer 2

Answer:

18= 9 * 2

Step-by-step explanation:

x^2-(a+b)x + (ab) this is the general equation

therefore

x^2-(9+2)x+(9*2) is the given equation