Question Find the roots n=109Alternative Form n=0.9 Evaluate 9−10nTo find the roots of the expression,set the expression equal to 0 9−10n=0Move the constant to the right-hand side and change its sign −10n=0−9Removing 0 doesn't change the value,so remove it from the expression −10n=−9Change the signs on both sides of the equation 10n=9Divide both sides 1010n=109Solution n=109Alternative Form n=0.9 Show Solution