isabellag2007ig
isabellag2007ig
15-05-2021
Mathematics
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2x^2-15=x
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sibu25
sibu25
15-05-2021
2x^2-15=x
2x^2-x-15=0
(X-3)(2x-5)=0
x-3=0 or 2x-5=0
X=3 2x=5
x=5/2=2.5
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