2x^2-3x-2=0 zero product property
\(2x^2-3x-2=0 \\ 2x^2-4x+x-2=0 \\ 2x(x-2)+1(x-2)=0 \\ (2x+1)(x-2)=0 \\ 2x+1=0 \ \lor \ x-2=0 \\ 2x=-1 \ \lor \ x=2 \\ x=-\frac{1}{2} \ \lor \ x=2 \\ \boxed{x=-\frac{1}{2} \hbox{ or } x=2}\)
2x² - 3x - 2 = 0x = -(-3) +/- √((-3)² - 4(2)(-2)) 2(2)x = 3 +/- √(9 + 16) 4x = 3 +/- √(25) 4x = 3 +/- 5 4x = 3 + 5 or x = 3 - 5 4 4x = 8 x = -2 4 4x = 2 x = ⁻¹/₂