Question

Factorise: x^2 +3x - 1

Answer 1

Answer:

(x+2)(x+1)

Step-by-step explanation:

Let a =1, b=3 and c=-1

-b+-√b^2+4ac/2a

-3+-√9-4/2

-3+-3-2/2

-3+-1/2

-3-1/2

-4/2

-2/1=x

-3+1/2

-2/2

-1/1=x

Roots of the equation=(x+2)(x+1)