Solve the equation for all values of x by completing the square.
3x^2-60x+255=0
1 answer:
Answer:
x=5 and x=15
Step-by-step explanation:
3x^2-60x+225=0
3x^2-60x+225/3=0/3
x^2-20x+75=0
x^2-5x-15x+75=0
x(x-5)-15(x-5)=0
(x-5)(x-15)=0
x-5=0 x-15=0
x=5 x=15
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Answer:
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Step-by-step explanation:
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Tenth place is the first place after the decimal which is 4.999
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The answer is 4.9