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Answer:
option A
Step-by-step explanation:
Since
, you have
and since
, you have
So,
Note that this assumes that both
and
are positive, or
.
X²-6x+8=0
x²-2x-4x+8=0
x(x-2)-4(x-2)=0
(x-4)(x-2)=0
x=4 or 2