Question

if (-9)^x*(-1/9)^-3=9^8 ,find the value of x​

Answer 1

Step-by-step explanation:

${( - 9)}^{x} \times ( - \frac{1}{ {9}^{ - 3} } ) = {9}^{8} \\ {( - 9)}^{x} \times {( - 9)}^{3} = {9}^{8} \\ {9}^{x + 3} = {9}^{8} \\ x + 3 = 8 \\ x = 8 - 3 \\ x = 5$

base are same power to be equated

Hope you get your answer