How do you simplify #f( x ) = \frac { x + 9} { x ^ { 2} + 9x }#?
2 Answers
Dec 7, 2017
Explanation:
The denominator can be factorised into
Now,
Dec 7, 2017
Explanation:
#"factorise the denominator and cancel common factor"#
#f(x)=cancel((x+9))/(xcancel((x+9))#
#color(white)(f(x))=1/xto(x!=0)#