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x la a doua plus 12 x plus 36​

Răspuns :

[tex]x ^{2} + 12x + 36[/tex]

[tex]x ^{2} + 12x + 36 = 0[/tex]

[tex]delta = b ^{2} - 4ac[/tex]

[tex]delta = 12 ^{2} - 4 \times 1 \times 36[/tex]

delta=144-144

delta=0

afli x1, x2 care sunt egale x1=x2

x1, 2=-b+-radical din delta/2a

Spor!