Answer:
s=0,2
Explanation:
-s^2+2s=0
Factor out -s
-s ( s-2) =0
Using the zero product property
-s =0 s-2 =0
s=0 s=2
s = 0 OR s = 2
=>
So, Either:
=> -s = 0 OR s-2 = 0
=> s = 0 OR s = 2
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