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quadratic  equation;quadratic  formula
[tex] x^{2} +25x+156=0[/tex]

Sagot :

Jessviz
-25+-√(25)²-4(1)(156)/2(1)
-25+-√625-624/2
-25+-√1/2
x=-25-1/2=24/2 = 12
x= -25+1/2  = 26/2 =13