Question

Factorise fully 72-2y^2

Answer 1

Answer: 2(y + 6)(-y + 6)

Step-by-step explanation: Factor 72 - 2y^2

-2y^2 + 72

= 2(y + 6)(-y + 6)

Answer 2

`-2\left(y+6\right)\left(y-6\right)`

Explanation:

`72-2y^2`

`-2y^2+72`

Factor out GCF.

`2(-y^2+36)`

Apply difference of two squares formula.

`-2\left(y+6\right)\left(y-6\right)`