hannahboohoo120
19.12.2019 •
Mathematics
3x^2+2x+5=0
quadratic equation
Solved
Show answers
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Ответ:
Step-by-step explanation:
use formula
(-b+√b2-4ac)/2a
a=3, b=2 , c=5
(-2+√4-4×3×5)/2×3
(-2+√-56)/6
(-2+2√-14)/6
(-2 +2√14i)/6
Ответ:
The quadratic equation has a form of
We have
Hence our coefficients are
Now to find a solution we have to look at the equation, since equation has no apparent solution given by the factorisation we are forced to use quadratic formula.
Put in the data and simplify a bit
And we get two complex solutions
Hope this helps.
r3t40
Ответ: