Question

y² - 4y - 5 factorise​

Answer 1

Answer:

y^2-5y+y-5

y(y-5)+1(y-5)

(y-5)(y+1)

Answer 2

Answer:

Answer

y  

2

−4y+5

=y  

2

−y−5y+5

=y(y−1)−5(y−1)

=(y−1)(y−5)

Hence, the answer is (y−1)(y−5).