Question

Rezolvati in R ecuatia:
$3 x^{2}+4x-4=0$

Answer 1

Δ(delta)=b²-4ac
Δ=4²-4·3·(-4)=16+48=64
1x=-b-√Δ spra 2a 
1x=(-4-8)/2·3=-2
2x=-b+√Δ supra 2a
2x=(-4+8)/2·3=4 supra 6 (de aici simplificam prin 2 si va fi) doua treimi sau 2/3

Answer 2

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