Question

Solve the equation. Show all steps and work. Then check your answers (show all work). Finally, write the solution set.

x+1=√9x-11

Answer 1

Hello,

`x+1=√(9x-11)\\ (x+1)^2=9x-11\\\ x²+2x+1-9x+11=0\\ x^2-7x+12=0\\ x²-4x-3x+12=0\\ x(x-4)-3(x-4)=0\\ (x-4)(x-3)=0\\ x=4\ or\ x=3`

Sol={3,4}