Question

Решите пожалуйста
х^2+6х-6х-36>0

х^ 2+25х-30х-750<0

Answer 1

${x}^{2} - 36 > 0 \ {x}^{2} > 36 \ x > 6$

${x}^{2} - 5x - 750< 0 \ d = {b}^{2} - 4ac = 25 + (750 times 4) = 3025 \ x_{1} = frac{ - b + sqrt{d} }{2} = 30 \ x _{2} = - 25 \ - 25 < 0$