Question

answer please I will mark as brilliant ​

Answer 1

Answer:

${5x}^{2} - 4x - 8 = 0 \\ according \: to \: the \: formula \\ {ax}^{2} + bx + c \\ a = 5 \\ b = - 4 \\ c = - 8 \\ formula \\ {b}^{2} - 4ac \\ { - 4}^{2} - 4 \times 5 \times ( - 8) \\ 16 + 160 \\ 176$