How do you multiply #\frac { x + 4} { 24} \cdot \frac { 24} { ( x + 4) ( x - 4) }#?

1 Answer
smendyka
May 19, 2017

See a solution process below:

Explanation:

First, cancel common terms in the numerators and denominators of the fractions:

#color(red)(cancel(color(black)(x + 4)))/color(blue)(cancel(color(black)(24))) * color(blue)(cancel(color(black)(24)))/(color(red)(cancel(color(black)((x + 4))))(x - 4)) =>#

#1/1 * 1/(x - 4) => (1 * 1)/(1 * (x - 4)) =>#

#1/(x - 4)#

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