Question

x la puterea 2-7x+6=0 este o ecuatie de gradul 2 dau coroana si la ecuatie vreau si pasi

Answer 1

ax² + bx + c = 0 x² - 7x + 6 = 0

Δ = b² - 4ac = 7² - 4 ×6×1 = 49 - 24 = 25

x₁ = (- b + √Δ)/2a = ( 7+5)/2 = 6

x₂ = (- b - √Δ)/2a = (7 - 5) /2 = 2/2 = 1

deci: x₁ = 6 si x₂ = 1