woodcaleigh26 woodcaleigh26

06-03-2018
Mathematics

contestada

Solve the equation. Show all steps and work. Then check your answers (show all work). Finally, write the solution set.
x+1=√9x-11

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06-03-2018

Hello,
[tex]x+1=\sqrt{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 [/tex]

Sol={3,4}

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