1 year ago

Using the quadratic formula to solve x2 = 5 – x, what are the values of x?

Mathematics

1 answer:

Ivenika [448]1 year ago

4 0

Answer:

x²=5-x

x²+x-5=0

1x²+1x²-5=0

[ax²+bx²+c=0]

∆=b²-4ac

∆=1²-4(-5)(1)=1+20=21

x=(-b±√∆)/2a

x=(-1±√21)/2

meaning:

x=(-1+√21)/2 or x=(-1-√21)/2

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