Question

Factorise y^2-ky-2k^2​

Answer 1

Solution :

Now, y² - ky - 2k²

= y² + (1 - 2) ky - 2k²

= y² + ky - 2ky - 2k²

= y (y + k) - 2k (y + k)

= (y + k) (y - 2k) ,

which is the required factorization.

Answer 2

Answer:

Hope you got each step dear.. First I just multiply the coefficients of last two terms and thought about how they can result into -1 ...and the rest is as shown...

Mark it as brainliest dear if you find it helpful...