Question

Descompuneti in factori:a)(4x+3)²-100=0 b)(3x-1)²-6=0 c)(4x+3)²=8=0 D)-(x+2)²-2=0

Answer 1

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=$\sqrt{6}$
(3x-1-$\sqrt{6)}$)(3x-1+$\sqrt{6}$)
c).a= 4x+3, b=2$\sqrt{2}$
(4x+3-2$\sqrt{2}$)(4x+3+2$\sqrt{2}$)
d). a=x-2, b=$\sqrt{2}$