👤

3x la 2 + 5x-2 =0

5x la 2 -9x-2=0

ajutati-ma va rog frumos !


Răspuns :

3x^2+5x-2=0
D=25+24=49
radical din D=+-7
x1=(-5-7)/6=-12/6=-2
x2=7-5)/6=2/6=1/3

5x^2-9x-2=0
D=81+40=121
radical D=+-11
x1=9-11)/10=-2/10=-1/5
x2=9+11)/10=2