TOLONG BANTU [tex] \frac{ {x}^{ 3} + 3 {x}^{2} y}{x + 3y} - \frac{27 {y}^{3} + 9 {y}^{2}x }{3y + x} = x + 3y[/tex] Maka nilai x-3y adalah

(X³+ 3X²Y) - (27 Y³+9 Y²X) = X + 3Y
________. --------------------
(X+3Y) (3Y+X)


X²(X+ 3Y) - 9Y² (3Y+X) = X + 3Y
________. --------------------
(X+3Y) (3Y+X)

Yg sama di coret

Sisa nya
X² -9 Y² = X + 3Y
(X+3Y)(X-3Y) = (X+3Y)

Maka
(X -3Y) = 1

Jwbn nya 1


Bintang 5 nya ya