How do you simplify #(5a)^-2#?
1 Answer
Jul 24, 2017
Explanation:
#"using the "color(blue)"laws of exponents"#
#•color(white)(x)(ab)^n=a^nb^n#
#•color(white)(x)a^-nhArr1/a^n#
#rArr(5a)^-2#
#=5^-2xxa^-2#
#=1/5^2xx1/a^2=1/25xx1/a^2=1/(25a^2)#
