a) folosesti formula a²-b²=(a-b)(a+b) a=4x+3, b=10
(4x+3-10)(4x+3+10)=0
(4x-7)(4x+13)
b) a=3x-1, b=[tex] \sqrt{6} [/tex]
(3x-1-[tex] \sqrt{6)} [/tex])(3x-1+[tex] \sqrt{6} [/tex])
c).a= 4x+3, b=2[tex] \sqrt{2} [/tex]
(4x+3-2[tex] \sqrt{2} [/tex])(4x+3+2[tex] \sqrt{2} [/tex])
d). a=x-2, b=[tex] \sqrt{2} [/tex]
