Question

1.Wykonaj mnożenie

a) (5x²y³+xy4)*(2x³y²+3xy)

b) (2pq-p)*(2pq-q)

c) (2abc-1)*(3a²+3b²-c²)

d) (xyz+yz+z)*(xyz+xy+x)

4-potega czwarta

Answer 1

a) 10x^5y^5 + 2x^4y^6 + 15x^3y^4 + 3x^2y^5
b) 4p^2q^2 - 4p^2q - p^2
c) 6a^3bc + 6ab^3c - 2abc^3 - 3a^2 - 3b^2 + c^2
d) x^2y^2z^2 + xy^2z^2 + xyz^2 + x^2y^2z + xy^2z + 2xyz + x^2yz + xz