SOLUTION: help me write the expression 243^-4/5 in radical notation. and evaluate the radical expression in simplified form. and find the maximum y-value on a graph of y=f(x). f(x)=-x^2

Algebra ->  Radicals -> SOLUTION: help me write the expression 243^-4/5 in radical notation. and evaluate the radical expression in simplified form. and find the maximum y-value on a graph of y=f(x). f(x)=-x^2      Log On


   



Question 730081: help me write the expression 243^-4/5 in radical notation. and evaluate the radical expression in simplified form.
and find the maximum y-value on a graph of y=f(x). f(x)=-x^2+4x+5
and completely factor the polynomial of 5x^3+45x^2+5x+45.
and solve and check 3x^2+2x=16
Thank you for all your help.

Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
(1)1/17433922005
(2)f(2)=9
(3)5(x^2+1)(x+9)
(4)X=-8/3,2