Question

formula solution
1. (x-y)² =
2. x²-y² =
3. (x+a) (x+b) =
4. (x+y)³ =
5. (x-y)³ =
6. (x+y+z)² =​

Answer 1

Step-by-step explanation:

(x-y)² = x²+y²-2xy

x²-y² = (x+y) (x-y)

(x+a) (x+b) = x2+(a+b) x+ab

(x-y)³ = x³-3xy(x-y)-y³

(x+y+z)² =x² + y² + z² + 2xy + 2yz + 2zx

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