Question

fan and medal for
the solution set t^2-121=0

Answer 1

HI!!

Answer 2

factor as the difference of two squares \[(t+11)(t-11)=0\] then set each factor equal to zero and solve

Answer 3

or you can add 121 to both sides and get \[t^2=121\\t=\pm\sqrt{121}\\
t=\pm11\]

Answer 4

the solution set is {-11,11}

Answer 5

doing it for the message, the solution set is {-11,11}