45/(x+2)+45/(x-2)=14
(45(x-2)+45(x+2))/((x+2)(x-2))=14
90x/(x^2-4)=14
90x=14(x^2-4)
90x-14x^2+56=0
D=90^2-4*(-14)*56=8100+3136=11236
x1=(106-90)/(2*(-14))=-16/28=-4/7x2=(-106-90)/(2*(-14))=7
45/(x+2)+45/(x-2)=14
(45(x-2)+45(x+2))/((x+2)(x-2))=14
90x/(x^2-4)=14
90x=14(x^2-4)
90x-14x^2+56=0
D=90^2-4*(-14)*56=8100+3136=11236
x1=(106-90)/(2*(-14))=-16/28=-4/7
x2=(-106-90)/(2*(-14))=7