Question

descompuneti in factori expresia
E(x)=x³-7x²+12x
va rog,dau coroana​

Answer 1

Răspuns:

Explicație pas cu pas:

E(x)=x(x²-7x+12)

x1,2=7±√49-48/2      x1=(7+1)/2=4      x2=(7-1)/2=3

E(x)=x(x-3)(x-4)

Answer 2

E(x) = x³ - 7x² + 12x

= x(x² - 7x + 12)

= x(x² - 3x - 4x + 12)

= x[x(x-3) - 4(x-3)]

= x(x-4)(x-3)