Question

ex 11 va rog!!! dau coroana

Answer 1

Răspuns:

Explicație pas cu pas:

a) x²+x-2 = x²+2x-x-2 = x(x+2)-(x+2) = (x+2)(x-1)

b) x²-x-2 = x²-2x+x-2 = x(x-2)+(x-2) = (x-2)(x+1)

c) x²-2x-3 = x²-3x+x-3 = x(x-3)+(x-3) = (x-3)(x+1)

d) x²+2x-3 = x²+3x-x-3 = x(x+3)-(x+3) = (x+3)(x-1)

e) x²+x-6 = x²+3x-2x-6 = x(x+3)-2(x+3) = (x+3)(x-2)

f) x²-x-6 = x²-3x+2x-6 = x(x-3)+2(x-3) = (x-3)(x+2)

Answer 2

Răspuns:

Explicație pas cu pas: