Question

what is the suitable identity to find the product (y+4) (y+4)​

Answer 1

${\bigstar}$SOLUTION${\bigstar}$

➜(y+4) (y+4)

➜(y + 4)²

IDENTITY USED :

$\boxed{\sf{(a+b)² = a² + b² + 2ab}}$

here,

• a = y
• b = 4

➜(y + 4)²

➜y² + 4² + 2(4)(y)

➜$\boxed{\sf{ y² + 8y + 16 }}$

Answer 2

➜(y+4) (y+4)

➜(y + 4)²

IDENTITY USED :

(a+b)² = a² + b² + 2ab}}

(a+b)²=a²+b²+2ab

here,

a = y

b = 4

➜(y + 4)²

➜y² + 4² + 2(4)(y)

{ y² + 8y + 16 }}

y²+8y+16