Question

Разложите на многочлены трехчлен: х²+15х+50

Answer 1

${x}^{2} + 15x + 50 =(x + 5)(x + 10) \\ x1 + x2 = - 15 \\ x1 \times x2 = 50 \\ ( - 5) + ( - 10) = - 15 \\ ( - 5) \times ( - 10) = 50$