Разложи на множители квадратный трехчлен

1. \(x^2+3x-10=\) [ \((x-2)(x+5)\) | \((x+1)(x-2)\) | \(2(x-1)(x+3)\) | \((5x+1)(x-2)\) ]
2. \(4x^2-20x-24=\) [ \(4(x+1)(x-6)\) | \((x+1)(x-6)\) | \(2(x-1)(x+3)\) | \((5x+1)(x-2)\) ]
3. \(2x^2-2x-4=\) [ \(2(x+1)(x-2)\) | \((x+1)(x-2)\) | \(2(x-1)(x+3)\) | \((5x+1)(x-2)\) ]