Question 963532


use {{{f(x)=4x-6}}} and {{{g(x)=5x^2}}} to evaluate each of the following

A) {{{(f+g)(5)}}}

{{{(f+g)(5)=f(5)+g(5)}}}
{{{(f+g)(5)=4*5-6+5*5^2}}}
{{{(f+g)(5)=20-6+5*25}}}
{{{(f+g)(5)=14+125}}}
{{{(f+g)(5)=139}}}


b) 
{{{(f-g)(-7)}}}
{{{(f-g)(-7)=f(-7)+g(-7)}}}
{{{(f-g)(-7)=4(-7)-6+5(-7)^2}}}
{{{(f-g)(-7)=-28-6+5*49}}}
{{{(f-g)(-7)=-34+245}}}
{{{(f-g)(-7)=211}}}

c) 

{{{(fg)(6)=f(6)*g(6)}}}
{{{(fg)(6)=(4*6-6)*(5*6^2)}}}
{{{(fg)(6)=18*180}}}
{{{(fg)(6)=3240}}}

d) 
{{{(f/g)(0)=f(0)/g(0)}}}
{{{(f/g)(0)=(4*0-6)/(5*0^2)}}}
{{{(f/g)(0)=-6/0}}}..........unidentified,{{{infinity}}}