nasa pic po ang answer...
(x-4)²-81=0
(x+ 1) (x -81)=0
x+1=0 x-81=0
x-1=0 x+81=0
answer: x= +1 x= -81
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nasa pic po ang answer...
(x-4)²-81=0
(x+ 1) (x -81)=0
x+1=0 x-81=0
x-1=0 x+81=0
answer: x= +1 x= -81