Question

descompune factori ex 11 vă rog​

Answer 1

Răspuns:

a)(x-4)(x+1)

b)(x+5)(x-1)

c)(x+3)(x-1)

d)(x-7)(x+1)

e)(x-10)(x+2)

f)(x-2)(x+9)

g)(x+2)(x-1)

h)(x-3)(x+2)

i)(x+1)(x-2)

Explicație pas cu pas:

a)x^2-3x-4=

x^2+x-4x-4=

x(x+1)-4(x+1)= (x-4)(x+1)