Question

dau coroana va rog eu mult ajutatima ​

Answer 1

Răspuns:

a) x2 -2×-35= c) x2 -x-2=

x la 2 +5x-7x-35= x2 +x -2x-2=

x × (x+5)-7(x+5)= x×(x+1)-2(x+1)=

(x+5)×(x-7) (x+1)x(x-2)

e) 15x2+7x-2=

15x2 +10x-10x-3x-2= 5x ×( 3x+2)-(3x +2)=(3x+2) ×(5x-1)

g).5x2+13x-6=

5x2+15x-2x-6=

5x × (x+3)-2(x+3)=

(x+3)×(5x-2)