exam
Maths Puzzle
Numerical Ability
solve using the square property:
please tell me if I solved this problem correctly.
(x+6)^2=121
x+6=sqrt121
x+6=11
x=6+11
x=17
x-6= -sqrt121
x-6= -11
x=6-11
x= -5
x= 17, -5
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