Answer:
4/7
Explanation:
x2-4= 5x
= +x2
-4=7x
/7
No.
Let's verify that the left-hand-side and -right-hand-side are different, when we replace x by 6:
(6)^2-4=36-4=32
5(6)=30
As 32 is different from 30, then 6 is not a solution of the equation.
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