Question

Exercitiul 5 descompuneti in factori polinomul

Answer 1

[tex]a)4x^2+4x+1=(2x)^2+2*2x*1+1^2=\underline{(2x+1)^2} \\ b)z^2-z+0,25=z^2-2*z* \frac{1}{2}+( \frac{1}{2})^2 =\underline{(z-0,5)^2} \\ c)9x^2+42x+49=(3x)^2+2*3x*7+7^2=\underline{(3x+7)^2} \\ d)9x^2-6x+1=(3x)^2-2*3x*1+1^2=\underline{(3x-1)^2 }[/tex]