How would i change this into vertex form? steps

Find the ratios of the corresponding sides

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20