Question

all the formulas of polynomials please answer it its urgent plz​

Answer 1

→ Formulaes :

(x + y)2= x2 + 2xy + y2

(x – y)2= x2 – 2xy + y2

x2– y2 = (x + y)(x – y)

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

(x + y + z)2= x2 + y2 + c2 + 2xy + 2yz + 2zx.

(x + y)3= x3 + y3 + 3xy (x + y)

(x – y)3= x3 – y3 – 3xy (x – y)

x3+ y3 = (x + y)(x2 – xy + y2)

Answer 2

Answer:

1. (x + y)2= x2 + 2xy + y2
2. (x – y)2= x2 – 2xy + y2
3. x2– y2 = (x + y)(x – y)
4. (x + a)(x + b) = x2+ (a + b)x + ab.
5. (x + y + z)2= x2 + y2 + c2 + 2xy + 2yz + 2zx.
6. (x + y)3= x3 + y3 + 3xy (x + y)
7. (x – y)3= x3 – y3 – 3xy (x – y)
8. x3+ y3 = (x + y)(x2 – xy + y2)