Question

Find the derivative of the following function from first principal (1) (x -1) ( x -2 )​

Answer 1

Answer:

(x -1) ( x -2 )= x^2+ (-3x) + 3

Step-by-step explanation:

Using identity :

(x+a) (x+b) = x^2+ x(a+b)+ab

here, a = (-1) , b=(-2)

therefore

(x -1) ( x -2 ) = x^2 + x(-1-2)+ (-1×-2)

= x^2+ (-3x) + 3