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0=x^2-10x+30 by completing the square
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0=x^2-10x+30 by completing the square

User DimitrisCBR
by
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1 Answer

3 votes

Answer:

15 and -5

Explanation:

D=(-10)^2-4*30*1=100-120=-20

x1=(10+20):2=15

x2=(10-20):2=-5

User Tsotsi
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