3²(x²+x)=3pangkat3(x²-¹)

[tex] {3}^{2} ( {x}^{2} + x) = {3}^{3} ( {x}^{2 - 1} ) \\ 9 {x}^{2} + 9x = 27x \\ 9 {x}^{2} - 18x = 0 \\ 9x(x - 2) = 0 \\ x = 0 \: atau \: x = 2[/tex]