Simplify and leave no negative exponents a 52 b 5x2 c 42 d 1

Simplify and leave no negative exponents. a) -5^2 b) (-5x)^2 c) 4^-2 d) 16^-1/2 e) (144y^12)^6 f)(20a^10b^6/5a^3b^2)^3

Solution

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a)

-5^2 = -25

b)

(-5x)^2 = (-5)^2 (x)^2

= 25x^2

c) 4^(-2)

= 1/4^2

= 1/16

d) 16^(-1/2)

= 1/16^1/2

= 1/ 4

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