Question

expand y²-16 by using identity
EXPLAIN IT WITH STEPS ​

Answer 1

Answer:

(y-4) (y-4) is the answer

Step-by-step explanation:

y²-16

y²-4^2

(y-4) (y-4)

Answer 2

Answer:

(y+4)(y-4)

Step-by-step explanation:

y²-16

lets,

y=a , 16 = b

(y)²-(4)² (a²-b²)= (a+b)( a-b )

so,

( a+ b )( a - b )