Question

Solve 7x2 - 3x - 4 = 0 using factorization as well as formula method​

Answer 1

Answer:

$7 {x}^{2} - 3x - 4 = 0 \\ \\ \\ \\ 7 {x}^{2} - 7x + 4x - 4 = 0 \\ \\ \\ \\ 7x(x - 1) + 4(x - 1) = 0 \\ \\ \\ \\ (x - 1)(7x + 4) = 0 \\ \\ \\ \\ x = 1 \\ \\ x = \frac{ - 4}{7}$