Question

24. Factorise: x² + 7x + 12 (bhai explain kar dana)​

Answer 1

x² + 7x + 12

x² + (4 + 3)x + 12

x² + 4x + 3x + 12

x(x + 4) + 3(x + 4)

(x + 4)(x + 3)

Ho gya bhai

Answer 2

Answer:

x=-3 or x=-4

Step-by-step explanation:

x^2 + 7x +12 = x^2 + 4x+ 3x + 12

=> x(x+4) + 3(x+4)

=> (x+3) (x+4)

=> x=-3 or x=-4