Question

Rút gọn

Answer 1

3: =x¹⁸

6: =x¹⁴

9: =x¹²

12: \(=\left(-27\right)^2=729\)

15: \(=\left(\dfrac{4}{9}\right)^x\)

18: \(=8^x\)

Answer 2

\(3,=x^{9.2}=x^{18}\\ 6,=x^{2.7}=x^{14}\\ 9,=x^{4.3}=x^{12}\\ 12,=\left(-3\right)^{3.2}=\left(-3\right)^6=729\\ 15,=\left(-\dfrac{2}{3}\right)^{2.x}=\left(-\dfrac{2}{3}\right)^{2x}\\ 18,=2^{3.x}=2^{3x}\\ 21,=x^{4.\left(-2\right)}=x^{\left(-8\right)}\\ 24,=x^{7.\left(-2\right)}=x^{\left(-14\right)}\\ 27,=\left(\dfrac{1}{2}\right)^{x.\left(-2\right)}=\left(\dfrac{1}{2}\right)^{\left(-2x\right)}\\ 30,=\left(-\dfrac{2}{3}\right)^{2.\left(-x\right)}=\left(-\dfrac{2}{3}\right)^{\left(-2x\right)}\)