Answer:
x = 7.07 or 4.925
Step-by-step explanation:
3(x-6)^4+11=15
3(x-6)^4=15-11
(x-6)^4=4/3
x-6 = +[tex]\sqrt[4]{4/3}[/tex] or -[tex]\sqrt[4]{4/3}[/tex]
x= +[tex]\sqrt[4]{4/3}[/tex] +6 or -[tex]\sqrt[4]{4/3}[/tex] +6
