Question

$a) {3}^{2} .3. {3}^{ - 2} \\ b)( - \pi) {}^{3} \div ( - \pi) \\ c)(( - 5) {}^{4} )$

Answer 1

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a) 3^2 * 3 * 3^-2 = 3^(2 + 1 - 2) = 3^1 = 3

b) (-x)^3/(-x) = (-x)^(3 - 1) = (-x)^2 = x^2

c) (-5)^4 = 25^2 = 625