Question

Ajutor
C?
E?
F?
H?
I?

Answer 1

c). (x+2)²
e). (3x-1)²
f). (2x+1)²
h). (3x-2)²
l). (2x-5)²

Answer 2

Se aplică formulele:

[tex]\it a^2+2ab+b^2=(a+b)^2 \\\;\\ a^2-2ab+b^2 = (a-b)^2[/tex]

[tex]\it x^2+4x+4=x^2+4x+2^2=(x+2)^2 \\\;\\ 9x^2-6x+1= 3^2x^2-6x+1^2 = (3x-1)^2 \\\;\\ 4x^2+4x+1= 2^2x^2+4x+1^2 =(2x+1)^2[/tex]