Question

Polinômios- (x-4y).(x-y)

Answer 1

X^2-xy-4xy-4y^2
X^2-5xy-4y^2

Answer 2

$(x-4y).(x-y) \\ x^{2} -xy-4xy+4 y^{2} \\ x^{2} + 4y^{2} - 5xy$