Answer:
(2a - [tex]\frac{y}{4}[/tex] )(2a + [tex]\frac{y}{4}[/tex] )
Step-by-step explanation:
4a² - [tex]\frac{y^2}{16}[/tex] ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
4a² - [tex]\frac{y^2}{16}[/tex]
= (2a)² - ([tex]\frac{y}{4}[/tex] )²
= (2a - [tex]\frac{y}{4}[/tex] )(2a + [tex]\frac{y}{4}[/tex] )
