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lubasha [3.4K]
3 years ago
9

Someone please help me

Mathematics
1 answer:
bearhunter [10]3 years ago
6 0
B. triangle and triangular prism
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Using the quadratic formula to solve x2 = 5 – x, what are the values of x?
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Answer:

x²=5-x

x²+x-5=0

1x²+1x²-5=0

[ax²+bx²+c=0]

∆=b²-4ac

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x=(-b±√∆)/2a

x=(-1±√21)/2

meaning:

x=(-1+√21)/2 or x=(-1-√21)/2

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