Question

simplify the following (y square+2y+2)(y square-2y+2)​

Answer 1

Answer:

y⁴-4y²-4y-4

Step-by-step explanation:

[y² +(2y+2)][y²-(2y+2)] = (y²)² -(2y+2)²

[since (a+b)(a-b)=a²-b²]

=y⁴-(4y²+4y+4) = y⁴-4y²-4y-4

[since (a+b)² = a² + 2ab + b² ]