Question

x la a doua plus 12 x plus 36​

Answer 1

$x ^{2} + 12x + 36$

$x ^{2} + 12x + 36 = 0$

$delta = b ^{2} - 4ac$

$delta = 12 ^{2} - 4 \times 1 \times 36$

delta=144-144

delta=0

afli x1, x2 care sunt egale x1=x2

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

Spor!