Question

Find the value of x if 9^((1)/(2)) .9^((1)/(2))=\root(x)(81)

Answer 1

Answer:

$\sqrt{9} \times \sqrt{9} = \sqrt[x]{81}$

$3 \times 3 = \sqrt[x]{9}^{2}$

$9 = {9}^{x \div 2}$

$x \div 2 = 1$

$x = 2$