document.write( "Question 417010: How do i find the domain for f(x)=sqrt(x^(2))-6x+8 \n" ); document.write( "
Algebra.Com's Answer #292054 by Gogonati(855)![]() ![]() You can put this solution on YOUR website! Square root is defined where the radical is positive 0r zero. \n" ); document.write( "x^2-6x+8>=0; D=(-6)^2-4(1)(8)=36-32=4; x1/2=(6+-2)/2 {4,2} The domain is; \n" ); document.write( "(-infinity,2]U[4,+infinity) or D={x real such that x<=2 and x>=4 } \n" ); document.write( " |