Question

3x²+25x+28=0 solve by factorisation method​

Answer 1

$3 {x}^{2} + 25x + 28 = 0 \\ \\ 3 {x}^{2} + 21x + 4x + 28 = 0 \\ \\ 3x(x + 7) + 4(x + 7) = 0 \\ \\ (x + 7)(3x + 4) = 0 \\ \\ x = - 7 \: or \: x = \frac{ - 4}{3}$