3 years ago

How much does this equation, also what is the answer 8 + (-8)

Mathematics

1 answer:

amm18123 years ago

8 0

Answer: 0

Step-by-step explanation:

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Solve quadratic equation x²-8x-1=0 by formula method

Alex_Xolod [135]

Answer:

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comparing above equation with ax²+bx+c=0

a=1

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$x = \frac{ - b + - \sqrt{ {b}^{2} - 4ac } }{2a}$

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taking positive

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taking negative

x=(8-√68)/2=2(4-√17)/2=4-√17

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