Question

15x2+17x−4=0

write steps

Answer 1

Answer:

$15 \times 2 + 17 \times - 4 = 0 \\ 30 + 17 \times - 4 = 0 \\ 47 \times - 4 = 0 \\ 0 = - 188 \: ans$

I hope it is helpful

Answer 2

Answer:

$15x {}^{2} + 17x - 4 = 0 \\ 15x {}^{2} + 3x - 20x - 4 = 0 \\ 3x(5x + 1) - 4(5x + 1) \\ (3x - 4)(5x + 1) = 0 \\ 3x - 4 = 0 \: or \: 5x + 1 = 0 \\ 3x = 4 \: or \: 5x = - 1 \\ x = \frac{4}{3} \: or \: x = \frac{ - 1}{5}$