Question 31044
1) {{{((x^3(y^(-4))z^0)/(5x^6(y^8)))^3}}} the negative exponent goes to the denominator
{{{(((x^3)(z^0))/((5x^6)(y^4)(y^8)))^3}}} anything to the 0 power is 1
{{{(((x^3)(1))/((5x^6)(y^4)(y^8)))^3}}} combine the y terms by adding the exponent
{{{(((x^3))/((5x^6)(y^12)))^3}}} simplify the x terms 
{{{((1)/((5x^3)(y^12)))^3}}} a power raised to a power multiply the exponents
{{{(1)/((125x^9)(y^36))}}}
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2) please see this lesson >>http://www.algebra.com/algebra/homework/Exponents/Scientific-Notation.lesson

3){{{f(x)=2x-11}}}, find f(2)
{{{f(2)=2(2)-11}}} solve the math problem

4) this problem has an underscore in it, which i don't know what this means