Question

x²+7x+12=0 completing square method​

Answer 1

Answer:

x^2 + 7x + 12 = 0

x^2 + 3x + 4x + 12 = 0

(x^2 + 3x) + (4x + 12) = 0

x (x + 3) + 4(x + 3) = 0

(x + 4) (x + 3) = 0

x = - 4 or - 3

Let alpha = - 4 & Bita = - 3

Verification :-

Alpha + bita = - b/a

-4 + (-3) = - 4 -3 = - 7

= - b/a

= - 7/1

Alpha x bita = c/a

-4 x - 3 = 12

= c/a = 12/1

Hope this helps you keerthy!! Please mark this answer as the brainlist answer!! All the best for your exams!

Answer 2

Answer:

Step-by-step explanation: