Question

deSCOMPUNETI IN FACTORI FOLOSIND GRUPAREA TERMENILOR:
a)3x la puterea a doua -7x+2=
b)3x la a doua+7x-6=

Answer 1

a)

$3 x^{2} -7x+2=\ \textgreater \ \\ 3 x^{2} -x-6x+2=\ \textgreater \ \\ x(3x-1)-2(3x-1)=\ \textgreater \ \\ (x-2)(3x-1)$

b)
$3 x^{2} +7x-6=\ \textgreater \ \\ 3 x^{2} +9x-2x-6=\ \textgreater \ \\ 3x(x+3)-2(x+3)=\ \textgreater \ \\ (3x-2)(x+3) \\ Succes$