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2 years ago

Use the quadratic formula to solve 2^2 − 5 − 5 = 0 The formula is : ( -b ± √b^2 - 4ac ) / 2a

Mathematics

1 answer:

Serggg [28]2 years ago

8 0

Answer:

x = 5/4 + √65/4 or x = 5/4 - √65/4

Step-by-step explanation:

I'm assuming you mean 2x^2-5x-5=0?

x = ( -b ± √b^2 - 4ac ) / 2a

x = ( -(-5) ± √(-5)^2 - 4(2)(-5) ) / 2(2)

x = ( 5 ± √(25 + 40) ) / 4

x = ( 5 ± √65 ) / 4

x = 5/4 ± √65/4

Therefore, x = 5/4 + √65/4 or x = 5/4 - √65/4

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Answer:

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3 years ago

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Answer:

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Step-by-step explanation:

We are given the following in the question:

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3 years ago