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3 years ago

Sovle by completeing the square round to the nearest hunderth if nessasary x^2+2x=8

1 answer:

8 0

The answer is C
x² + 2x = 8 2/2=1; 1²=1, then you add to both sides of the equation

x²+ 2x+ 1 = 8 + 1 factor (x+1)(x+1)

(x+1)² = 9 square root both sides

√(x+1)² = √9

x+1= 3 or x+1 = -3
x= 3- 1 x= -3-1
x= 2 x= -4

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3 years ago

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Given:

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3 years ago

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4 years ago

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White raven [17]

Answer:

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Step-by-step explanation:

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3 years ago

The number of visitors to a certain Web site triples every month. The number of visitors is modeled by the expression 300 •3m,

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We have that 

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4 years ago