Question

factorise 4y²-4-14=0

Answer 1

4y^2 - 20
= 4( y^2 -5 )
I guess this cannot be factorize more

Answer 2

Explanation:

first each term divide by 2

2÷2÷2 this gives 2y_2_7=0 this gives 2y_9=0this gives y=9÷2