advance functions gr12 HELP ASAP
posted by ALEX on .
using rational functions solve (x+5)/(x3)= (2x+7)/(x)
thank you

as with all fractions , crossmultiply to get rid of them:
(x+5)(x) = (2x+7)(x3) assuming x≠0,3
x^2+5x = 2x^2+x21
x^24x21 = 0
(x7)(x+3) = 0
x = 3,7
check:
(3+5)/(33) = 1/3 = (6+7)/(3)
(7+5)/(73) = 3 = (14+7)/7