7. 6x^(2/3)-5x^(1/3)-6=0 let x^(1/3)=t then 6t^2-5t-6=0 D=25+4*6*6=25+144=169 t=(5+-sqrt(169))/12=(5+-13)/12 t1=3/2 or t2=-2/3 then x^(1/3)=3/2 or x^(1/3)=-2/3 SO x=27/8 or x=-8/27
8.x^(-2)+4x^(-1)=12 let x^(-1)=t thent^2+4t=12 t^2+4t+4=16 (t+2)^2=16 t+2=+-4 t=-2+-4 t=-6 or t=2 so x=-1/6 or x=1/2
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!
Comments
Leave a comment