Question

In prima imagine descompuneti in factori grupand inai convenabil termanii iar in a doua imagine restrangeti.

Answer 1

1. a) =5ax*x+10a*ax+4ax*x*x+8a*ax*x=5ax(x+2a)+4ax*x(x+2a)=(x+2a)(5ax+4ax*x)
    b) =4x*xy(3y*y+1)+3z*z(3y*y+1)=(3y*y+1)(4x*xy+3z*z)
    c) =5xy(1+2xy)+2x*xy(1+2xy)=(1+2xy)(5xy+2x*xy)
    d) =2x(x-2a)+3a*a(x-2a)=(x-2a)(2x+3a*a)

2. a) (x+radicaldin7) la patrat
    b) (x-2radicaldin3) la patrat
    c) (x-radicaldin6) la patrat
    d) (x-radicaldin3) la patrat