Question

$( \frac{y}{4} + 3)( \frac{y}{4} - 3)$
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Answer 1

Step-by-step explanation:

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Answer 2

( y / 4 + 3 ) ( y / 4 - 3 )

( y / 4 + 3 × 4 / 4 ) ( y / 4 - 3 )

y + 3 × 4 / 4 ( y / 4 -3 )

y + 12 / 4 ( y / 4 - 3 )

y + 12 / 4 ( y / 4 - 3 × 4 / 4 )

y + 12 / 4 × ( y - 3 × 4 / 4 )

y + 12 / 4 × ( y - 12 / 4 )

( y + 12 ) ( y - 12 ) / 4 × 4

( y + 12 ) ( y - 12 ) / 16

y² - 12² / 16

y² - 144 / 16

hope helpful for you