Question

Factorise: 5-4y-12y²​

Answer 1

$5 - 4y - 12y {}^{2} \\ = 5 - (10 - 6)y - 12y {}^{2} \\ = 5 - 10y + 6y - 12y {}^{2} \\ = 5(1 - 2y) + 6y(1 - 2y) \\ = (1 - 2y)(5 + 6y)$

Answer 2

Step-by-step explanation:

5−(10−6)y−12y

2

=5−10y+6y−12y

2

=5(1−2y)+6y(1−2y)

=(1−2y)(5+6y)