Question

2x^2 + 210 - 44x = 0

Answer 1

$2 {x}^{2} - 44x + 210 = 0$


Divide whole equation by 2



${x}^{2} - 22x + 105 = 0 \\ \\ {x}^{2} - 15x - 7x + 105 = 0 \\ \\ x(x - 15) - 7(x - 15) = 0 \\ \\ (x - 7)(x - 15) = 0$
Therefore the required zeroes will be 7 and 15.