2x2-3x-5=0
2x2-5x+2x-5=0
x(2x-5)+(2x-5)=0
(x+1)(2x-5)=0
x+1=0 , x=-1
2x+5=0 , x=-5/2
\({2x}^{2}-3x-5=0\)
\({2x}^{2}-5x+2x-5=0\)
\(({2x}^{2}-5x)+(2x-5)=0\)
\(x\times(2x-5)+1\times(2x-5)=0\)
\((x+1)(2x-5)=0\)
\(x+1=0\) \(2x-5=0\)
\(x+1=0\)
\(x=-1\)
\(2x-5=0\)
\(2x=5\)
\(x=\frac{5}{2}\)
\(x=-1\) and \(x=\frac{5}{2}\)